Cisco WS-C2950-24 Software Configuration Guide
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- Cisco WS-C2950-24 | Software Configuration Guide - Page 1
XL Software Configuration Guide Cisco IOS Release 12.0(5)WC(1) April 2001 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Customer Order Number: DOC-786511= Text Part Number: 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 2
the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0102R) Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide Copyright © 1998-2001, Cisco Systems, Inc. All rights reserved. - Cisco WS-C2950-24 | Software Configuration Guide - Page 3
xxi Documentation Feedback xxi Obtaining Technical Assistance xxii Cisco.com xxii Technical Assistance Center xxii Contacting TAC by Using the Cisco TAC Website xxiii Contacting TAC by Telephone xxiii 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide iii - Cisco WS-C2950-24 | Software Configuration Guide - Page 4
2-7 Redundant Power System LED 2-8 Port Modes and LEDs 2-9 Menu Bars 2-14 Toolbar 2-17 Port Pop-Up Menu 2-18 Device Pop-Up Menu 2-19 Cluster View and Cluster Builder 2-21 Topology 2-24 Menu Bar 2-26 Toolbar 2-27 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide iv 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 5
Commands 3-5 Redisplaying a Command 3-5 Getting Help 3-5 Command-Line Error Messages 3-7 Accessing the CLI 3-8 Accessing the CLI from a Browser 3-9 Saving Configuration Changes 3-10 Where to Go Next 3-10 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide v - Cisco WS-C2950-24 | Software Configuration Guide - Page 6
Addresses 5-8 Passwords 5-8 Host Names 5-10 SNMP Community Strings 5-10 Management VLAN 5-11 Network Port 5-12 NAT Commands 5-12 LRE Profiles 5-13 Availability of Switch-Specific Features in Switch Clusters 5-13 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide vi 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 7
17 Configuring Daylight Saving Time 6-17 Configuring the Network Time Protocol 6-17 Configuring the Switch as an NTP Client 6-17 Enabling NTP Authentication 6-18 Configuring the Switch for NTP Broadcast-Client Mode 6-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 8
6-40 Changing the Forwarding Delay Time 6-41 STP Port States 6-41 Enabling the Port Fast Feature 6-42 Changing the Path Cost 6-43 Changing the Port Priority 6-43 Configuring STP Root Guard 6-44 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide viii 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 9
Server Host 6-62 Configuring Login Authentication 6-64 Specifying TACACS+ Authorization for EXEC Access and Network Services 6-65 Starting TACACS+ Accounting 6-66 Configuring a Switch for Local AAA 6-67 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide ix - Cisco WS-C2950-24 | Software Configuration Guide - Page 10
7-12 Configuring Protected Configuring a Port to Connect to a Cisco 7960 IP Phone 7-18 Overriding the CoS Priority of Incoming Frames 7-19 Configuring Voice Ports to Carry Voice and Data Traffic on Different VLANs 7-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 11
8-15 VTP Version 2 8-16 VTP Pruning 8-17 VTP Configuration Guidelines 8-18 Domain Names 8-18 Passwords 8-18 Upgrading from Previous Software Releases 8-19 VTP Version 8-19 Default VTP Configuration 8-20 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xi - Cisco WS-C2950-24 | Software Configuration Guide - Page 12
8-42 Configuring the Native VLAN for Untagged Traffic 8-43 Configuring 802.1p Class of Service 8-44 How Class of Service Works 8-44 Port Priority 8-44 Port Scheduling 8-45 Configuring the CoS Port Priorities 8-46 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xii - Cisco WS-C2950-24 | Software Configuration Guide - Page 13
9-4 Troubleshooting CMS Sessions 9-5 Determining Why a Switch Is Not Added to a Cluster 9-8 Copying Configuration Files to Troubleshoot Configuration Problems 9-9 Troubleshooting Switch Upgrades 9-10 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xiii - Cisco WS-C2950-24 | Software Configuration Guide - Page 14
A-5 CMP Messages A-5 Environment Messages A-6 GigaStack Messages A-7 Link Message A-8 LRE Link Messages A-8 Module Message A-9 Port Security Messages A-9 RTD Messages A-10 Storm Control Messages A-11 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xiv 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 15
and troubleshooting a switch or switch clusters. This guide also provides information about configuring the Cisco 575 Long-Reach Ethernet (LRE) customer premises equipment (CPE). It includes descriptions of the management interface options and the features supported by the switch software. Use - Cisco WS-C2950-24 | Software Configuration Guide - Page 16
Cisco IOS Release 12.0 documentation. For switch features that use standard Cisco IOS Release 12.0 commands, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI procedures. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 17
"Getting Started with the CLI," describes the basics for using the Cisco IOS CLI. Chapter 4, "General Switch Administration," includes the switch-configuration default settings and information about software releases, accessing the management interfaces, and using Simple Network Management Protocol - Cisco WS-C2950-24 | Software Configuration Guide - Page 18
guide uses the following conventions to convey instructions characters, such as passwords or tabs, are problem. The tips information might not be troubleshooting or even an action, but could be useful information. xviii Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 19
with the switch and has the following publications: - This Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide, Cisco IOS Release 12.0(5)WC(1) (order number DOC-786511=) - Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference, Cisco IOS Release 12.0(5)WC - Cisco WS-C2950-24 | Software Configuration Guide - Page 20
all Cisco products. This CD is not the same as the Catalyst 2900 XL and Catalyst 3500 XL Documentation CD, which contains only the Catalyst 2900 XL and Catalyst 3500 XL switch documents and related hardware documents. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 21
Feedback. If you are using the product-specific CD and you are connected to the Cisco Systems, Inc. Document Resource Connection 170 West Tasman Drive San Jose, CA 95134-9883 We appreciate your comments. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 22
Assistance Center The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract. xxii Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 23
if service is not restored quickly. No workaround is available. • P2-Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 24
Obtaining Technical Assistance Preface xxiv Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 25
in different network topologies Features The Catalyst 2900 XL and Catalyst 3500 XL software supports the switches and modules listed in the Release Notes for the Catalyst 2900 Series XL and Catalyst 3500 Series XL Cisco IOS Release 12.0(5)WC(1). This software also supports the Cisco 575 Long-Reach - Cisco WS-C2950-24 | Software Configuration Guide - Page 26
the streams from subscriber VLANs for bandwidth and security reasons • Protected port (private VLAN edge port) option for restricting the forwarding of traffic to designated ports on the same switch Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-2 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 27
other Cisco devices on the network • Network Time Protocol (NTP) for providing a consistent timestamp to all switches from an external source • Directed unicast requests to a Trivial File Transfer Protocol (TFTP) server for administering software upgrades from a TFTP server • Default configuration - Cisco WS-C2950-24 | Software Configuration Guide - Page 28
Policy Server (VMPS) for dynamic VLAN membership • VLAN Trunk Protocol (VTP) pruning for reducing network traffic by restricting flooded traffic to links destined for stations receiving the traffic Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 29
and telephony applications • Voice VLAN (VVID) for creating subnets for voice traffic from Cisco IP Phones Security • Password-protected access (read-only and read-write access) to management interfaces (CMS and CLI) for protection against unauthorized configuration changes • Multilevel security for - Cisco WS-C2950-24 | Software Configuration Guide - Page 30
Cisco 575 LRE CPE Hardware Installation Guide. For information about the nonhomologated Cisco LRE 48 POTS Splitter (PS-1M-LRE-48), refer to the Cisco LRE 48 POTS Splitter Installation Note. Catalyst 3524-PWR XL Switch-Specific Support • Ability to provide inline power to Cisco IP Phones from all 24 - Cisco WS-C2950-24 | Software Configuration Guide - Page 31
. For more information about CMS, see Chapter 2, "Getting Started with CMS." • CLI-The switch IOS CLI software is enhanced to support desktop-switching features. You can fully configure and monitor the switch and switch cluster members from the CLI. You can access the CLI either by connecting your - Cisco WS-C2950-24 | Software Configuration Guide - Page 32
on page 4-6. Advantages of Using CMS and Clustering Switches Using CMS and switch clusters can simplify and minimize your configuration and monitoring tasks. You can use Cisco switch clustering technology to manage up to 16 interconnected supported Catalyst switches through one IP address as if they - Cisco WS-C2950-24 | Software Configuration Guide - Page 33
VLAN, and quality of service (QoS) configuration - Inventory and statistic reporting and link- and switch-level monitoring and troubleshooting - Group software switches. • Monitor real-time status of a switch or multiple switches from the LEDs on the front-panel images. The system, redundant power - Cisco WS-C2950-24 | Software Configuration Guide - Page 34
a growing number of users accessing the Internet • Create smaller network segments so that fewer users share the bandwidth, and use VLANs and IP feature between the switch and its connected servers and routers. 1-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 35
Services Network Demands Suggested Design Methods High demand for multimedia support both delay and jitter within the network. • Use switches that support at least two queues per port to prioritize voice Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 36
Catalyst 3500 XL switches, again in a star configuration, to two backbone switches. If one of the backbone switches fails, the second backbone switch preserves connectivity between the switches and network resources. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 37
Workgroup Catalyst 2900 XL and Catalyst 3500 XL cluster Catalyst 4908G-L3 switch Catalyst 4908G-L3 switch 1-Gbps HSRP Redundant Gigabit Backbone 54568 Catalyst 2900 XL and Catalyst 3500 XL cluster Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 38
, connect the server to a Fast Ethernet or Fast EtherChannel switch port. Connecting a router to a Fast Ethernet switch port provides multiple, simultaneous access to the Internet through one line. 1-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 39
XL and Catalyst 3500 XL GigaStack cluster 100 Mbps (200 Mbps full duplex) Gigabit server 1 Gbps (2 Gbps full duplex) Gigabit server 10/100 Mbps (20/200 Mbps full duplex) Single workstations 54569 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 40
control calls from their PCs. Using Cisco IP Phones, Cisco CallManager software, and Cisco SoftPhone software integrates telephony and IP networks, where the IP network supports both voice and data. 1-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 41
full duplex Fast EtherChannel) Catalyst 3524-PWR XL GigaStack cluster IP IP AC power source Workstations running Cisco SoftPhone software IP IP Cisco IP Phones IP IP IP Cisco IP Phones 54570 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-17 - Cisco WS-C2950-24 | Software Configuration Guide - Page 42
features and configuration. • Cisco Access gateway (such as Cisco Access Digital Trunk Gateway or Cisco Access Analog Trunk Gateway) that connects the IP network to the PSTN or to users in an IP telephony network. 1-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration - Cisco WS-C2950-24 | Software Configuration Guide - Page 43
1 Gbps (2 Gbps full duplex) Catalyst 3524-PWR XL GigaStack cluster IP IP AC Workstations running power Cisco SoftPhone software source IP IP Cisco IP Phones IP IP IP Cisco IP Phones 54571 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-19 - Cisco WS-C2950-24 | Software Configuration Guide - Page 44
, such as the Cisco LRE 48 POTS Splitter Catalyst 2900 LRE XL switches were connected to the PSTN through a homologated POTS splitter, all LRE ports would use an ANSI-compliant LRE profile named PUBLIC-ANSI. 1-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 45
. You can also manage and monitor the individual CPEs through the Catalyst 2900 LRE XL switches to which they are connected. The LRE ports support the same software features as the 10/100 ports. For example, you can configure port-based VLANs on the LRE ports to provide individual port security and - Cisco WS-C2950-24 | Software Configuration Guide - Page 46
Floor 2 Telephones Required microfilter Floor 1 Cisco LRE 48 POTS splitters Catalyst 2900 LRE XL switches PSTN PBX Catalyst 2900 XL or Catalyst 3500 XL switch Servers Cisco 2600 router 54573 1-22 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 47
unauthorized devices from becoming the STP root switch. All ports have CGMP enabled for multicast traffic management. Higher VLAN and VLAN ID (4096) support is ideal for more security flexibility. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 1-23 - Cisco WS-C2950-24 | Software Configuration Guide - Page 48
Si Gigabit MAN Si Catalyst 2900 XL and Catalyst 3500 XL switches, including Catalyst 2900 LRE XL switches Set-top box TV Si Residential location Residential gateway (hub) Set-top box PC TV 54572 1-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 49
the appropriate switch documentation for descriptions of the web-based management software used on other Catalyst desktop switches, such as the Catalyst 2950, Catalyst 1900, and Catalyst 2820 switches. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-1 - Cisco WS-C2950-24 | Software Configuration Guide - Page 50
CMS application you use. Each CMS window also includes comprehensive online help, which provides procedures for performing tasks from the window and high-level concepts. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-2 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 51
A port-level pop-up menu for displaying windows specific for configuring and monitoring switch ports. This pop-up menu is described in configuration and monitoring options available from the menu bar. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 52
ports. The color of the port reflects port or link status. LEDs display the current port mode and the status of the switch and connected RPS. Left-click Mode to change the meaning of the port LEDs. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 53
a switch from the cluster tree. The color of the switch icon reflects switch status. Right-click a switch to display the device pop-up menu, and select an option to change system-related settings. 54504 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 54
is operating normally. A system fault exists, such as the internal fan is not operating. Switch is not powered up, has lost power, or the command switch is unable to communicate with the member switch. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-6 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 55
user-configurable polling intervals, making them as useful as the LEDs on the actual switches themselves. powered up. System is operating normally. System is receiving power but is not functioning properly. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 56
. Note This is not a recommended configuration. Amber RPS is connected but not functioning properly. One of the power supplies in the RPS could be powered down, or a fan on the RPS could have failed. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-8 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 57
bandwidth in use by the switch. Refer to the switch hardware installation guide for information about using the UTIL LED. To select or change a mode, click Mode until the desired mode LED is green. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 58
switches, this LED shows the link speed between the remote CPE and Ethernet device. LINE PWR Inline power setting on the Catalyst 3524-PWR XL 10/100 ports. (Catalyst 3524-PWR XL only) Default setting is auto. 2-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 59
is reconfigured, the port LED can remain amber for up to 30 seconds as STP checks the switch for possible loops. FDUP SPD Brown Cyan (off) Green Cyan (off) Green No link and operating at 100 Mbps. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 60
as a PC. The Ethernet link default settings on the LRE ports are different than those on the 10/100 ports. See Table 2-5. 2. In LRE mode, the 10/100 port LEDs continue to reflect Ethernet link status. 2-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 61
Cisco IP Phone is receiving power from an AC power source, the port LED is off even if the IP phone is connected to the switch port. The LED turns green only when the switch port is providing power. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 62
for rearranging the switch images is available only from Cluster Manager. Table 2-9 describes the VSM and Cluster Manager menu bar options and their function and shows where the two menu bars differ. 2-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 63
Settings (VSM-specific) Change the polling intervals for clustering and graphing, and enable the display of the splash page when VSM starts. Save Configuration Save the configuration. System Reload Reboot the software on a switch. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL - Cisco WS-C2950-24 | Software Configuration Guide - Page 64
Cisco Group Management Protocol (CGMP) Enable and disable the CGMP and the CGMP Fast Leave feature on a switch. Spanning-Tree Protocol (STP) Display and configure STP parameters for a switch. LRE Profile Display the LRE profile settings for the Catalyst 2900 LRE XL switches, and configure - Cisco WS-C2950-24 | Software Configuration Guide - Page 65
10.1.126.45 Move the cursor over the icon to display the tool tip. For example, the ? button displays Help Contents. 54511 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-17 - Cisco WS-C2950-24 | Software Configuration Guide - Page 66
is not available on Catalyst 1900 and Catalyst 2820 switches. For more information about link graphs, refer to the online help. Note This feature is only available when selecting an individual port. 2-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 67
the cluster switches. Reboot the software on a switch or a cluster. Enable and disable CGMP and the CGMP Fast Leave feature on a switch. Change STP parameters to prevent network loops. Display the LRE profile parameters for the Catalyst 2912 LRE and Catalyst 2924 LRE XL switches, and configure the - Cisco WS-C2950-24 | Software Configuration Guide - Page 68
plots the total bandwidth in use by the switch. This feature is not available on the Catalyst 1900 and Catalyst 2820 switches. For more information about bandwidth graphs, refer to the online help. 2-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 69
in the "Candidate, Member, and Link Pop-Up Menus" section on page 2-29. The toolbar and pop-up menus provide quick ways to access the configuration and monitoring options available from the menu bar. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-21 - Cisco WS-C2950-24 | Software Configuration Guide - Page 70
Builder Figure 2-5 Cluster View Chapter 2 Getting Started with CMS Cluster is collapsed to a double-switch icon. mcluster Connected cluster. Status bar shows that Cluster View is displayed. 54505 2-22 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 71
. Right-click a line to display the link pop-up menu, and select an option to display link information. Device label identifies the switch. Status bar shows that Cluster Builder is displayed. 54503 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-23 - Cisco WS-C2950-24 | Software Configuration Guide - Page 72
of the icon colors. Figure 2-7 Cluster View and Cluster Builder Device Icons Table 2-12 Icon Colors Icon Color Green Red Yellow Color Meaning Device is up. Device is down. Fault indication. 2-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 73
Green Cyan White Yellow Color Meaning A cluster member, either a member switch or the command switch. A cluster candidate that is fully qualified to become a cluster member. Meaning Active link Blocked link Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-25 - Cisco WS-C2950-24 | Software Configuration Guide - Page 74
the Link Report for two connected devices. If one device is an unknown device, candidate switch, or Catalyst 1900 or Catalyst 2820 switch, only the cluster member side of the link is displayed. 2-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 75
between switch names and IP or MAC addresses and connected port numbers. • Save the arrangement of the cluster icons as you have arranged them. • Save the current configuration for and Cluster View. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-27 - Cisco WS-C2950-24 | Software Configuration Guide - Page 76
Cluster View Device Menu Menu Option Action Device Web Page Displays the web management page for the device. Disqualification Code Describes why the switch is not a cluster member or candidate. 2-28 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 77
switches and not displaying them. Return switches that were down but are now up to the green (up) state. Switches that are yellow are down or were previously down. Applicable only to yellow member switches. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 78
1900 and Catalyst 2820 switches cannot be graphed. Display information about the link between two members. If one end of the link is a candidate, the report only displays information about the member switch. 2-30 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 79
CMS Window Components CMS Window Components CMS windows use consistent techniques to present configuration information. Figure 2-10 shows the components of a typical CMS window. Help topics. 32676 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-31 - Cisco WS-C2950-24 | Software Configuration Guide - Page 80
names. To display or change the configuration of a specific switch in a cluster, select the switch name. The current configuration settings of that switch appear. In some cases, switch-specific features (such as the LRE profiles on the Catalyst 2900 LRE XL switches) are available only when the - Cisco WS-C2950-24 | Software Configuration Guide - Page 81
the menu bar, select Help > Contents, and click Feedback to display a simple online form. After completing the form, click Submit to send your comments to Cisco. We appreciate and value your comments. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-33 - Cisco WS-C2950-24 | Software Configuration Guide - Page 82
the online help. Feature help. Enter the first letters of the topic, and click Find. Dialog-specific help. Click a topic under the Contents or Index tab. Chapter 2 Getting Started with CMS 4567 2-34 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 83
- HTML access to the command line interface from a cached copy of the Cisco Systems Access page. To prevent unauthorized access to CMS and the CLI, exit your browser to end the browser session. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 2-35 - Cisco WS-C2950-24 | Software Configuration Guide - Page 84
Protocol (HTTP) port 80, which is the default HTTP port. If you change the HTTP port, you cannot access CMS. For more information about the HTTP port, see the "HTTP Access to CMS" section on page 4-5. 2-36 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 85
configuration changes (except for changes to the topology and in the User Settings window), make sure you periodically save the configuration. The configuration is saved on the command and member switches. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 86
provides descriptions of the software features and general switch administration. Table 4-2 on page 4-9 lists the defaults for all key features, gives the page number in this guide where the feature is described, and the name of the CMS window from which you can configure the feature. Refer to the - Cisco WS-C2950-24 | Software Configuration Guide - Page 87
error messages • Accessing the CLI • Saving configuration changes This switch software release is based on Cisco IOS Release 12.0(5). It has been enhanced to support a set of features for the Catalyst 2900 XL and Catalyst 3500 XL switches. This guide provides procedures for using only the commands - Cisco WS-C2950-24 | Software Configuration Guide - Page 88
a list of commands for each command mode. The switch supports the following command modes: • User EXEC • Privileged EXEC • VLAN database • Global configuration • Interface configuration • Line configuration When you start a session on the switch, you begin in user mode, often called user EXEC - Cisco WS-C2950-24 | Software Configuration Guide - Page 89
supports specific Cisco IOS commands. For example, the interface command is used only from global configuration password to protect access to this mode. Use this mode to configure VLAN-specific parameters. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 90
can abbreviate commands and keywords to the number of characters that allow a unique abbreviation. For example, you can abbreviate the show command to sh or the show configuration command to show conf. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 91
of the help system in any command mode. switch> help • abbreviated-command-entry?-Obtain a list of commands that begin with a particular character string. switch> dis? switch> disable disconnect 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 92
switch# sh conf switch# sh configuration • ? - List all commands available for a particular command mode. switch> ? • command ?-List of command keywords. switch> you already have entered. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-6 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 93
Meaning % Ambiguous You did not enter enough command: "show con" characters for your switch to recognize the command. % Incomplete command. You did not enter all of the keywords the command appear. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 94
switch must have an enable secret password configured. For information about configuring the switch for Telnet access, see the "SNMP Network Management Platforms" section on page 4-6. The switch supports Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-8 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 95
Console - HTML access to the command line interface from a cached copy of the Cisco Systems Access page. To prevent unauthorized access to CMS and the CLI, exit your browser to end the browser session. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 3-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 96
Command Reference for complete descriptions of the switch commands. Refer to the Cisco IOS Release 12.0 documentation on Cisco.com for information about the standard Cisco IOS Release 12.0 commands. 3-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 97
• Setup program Also refer to the release notes about switch upgrades. For information about the standard Cisco IOS Release 12.0 commands, refer to the Cisco IOS Release 12.0 documentation on Cisco.com. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 4-1 - Cisco WS-C2950-24 | Software Configuration Guide - Page 98
, refer to the release notes. Switch Software Releases The switch software is regularly updated with new features and bug fixes, and you might want to upgrade your Catalyst 2900 XL and Catalyst 3500 XL with the latest software release. New software releases are posted on Cisco.com on the World Wide - Cisco WS-C2950-24 | Software Configuration Guide - Page 99
saving changes from CMS, see the "Saving Configuration Changes" section on page 2-37. For information about saving changes from the CLI, see the "Saving Configuration Changes" section on page 3-10. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 4-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 100
mode so that you can verify the entry. Display the running configuration. The password is listed under the command line vty 0 15 (Optional) Save the running configuration to the startup configuration. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 4-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 101
the Cisco Systems Access page You can also refer to the "Accessing CMS" section on page 2-35. For information about connecting to a switch port, refer to the switch hardware installation guide. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 4-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 102
and troubleshoot Catalyst 2900 XL and Catalyst 3500 XL switches. The switch supports a comprehensive set of Management Information Base (MIB) extensions and MIB II, the IEEE 802.1D bridge MIB, and four Remote Monitoring (RMON) groups, which this IOS software release supports. You can configure these - Cisco WS-C2950-24 | Software Configuration Guide - Page 103
, which resides on the network management system (NMS) • The SNMP agent, which resides on the switch • The MIBs that reside on the switch but that can be compiled with your network management software 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 4-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 104
uses the switch MIB variables to set device variables and to poll devices on the network for specific information. The results of a poll can be displayed as a graph and analyzed to troubleshoot internetworking problems, increase network performance, verify the configuration of devices, monitor - Cisco WS-C2950-24 | Software Configuration Guide - Page 105
4-2 and the release notes. If you have specific network needs, you can configure the switch through its various management interfaces. Table 4-2 lists the key software features, their defaults, their page numbers in this guide, and where you can configure them from the command-line interface (CLI - Cisco WS-C2950-24 | Software Configuration Guide - Page 106
Documentation set for Cisco IOS Release 12.0 on Cisco.com. Cluster Manager System > IP Management "Configuring CDP" section on - page 6-22. Documentation set for Cisco IOS Release 12.0 on Cisco.com. 4-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 107
address assignment Dynamic address management Voice configuration Default Setting Enabled None None assigned Enabled - Concepts and CLI Procedures CMS Option "Managing the ARP Table" section on page 6-45. Documentation set for Cisco IOS Release 12.0 on Cisco.com. Cluster Manager System > ARP - Cisco WS-C2950-24 | Software Configuration Guide - Page 108
the LRE Ports" section Cluster Manager on page 7-22. Device > LRE Profile Configuration Inline power Auto "Configuring Inline Power on the - Catalyst 3524-PWR Ports" section on page 7-21 4-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 109
Switch Administration Default Settings Table 4-2 Default Settings and Where To Change Them (continued) Feature Flooding Control Storm control Default Setting Disabled Flooding unknown Enabled unicast and multicast packets Cisco Group Enabled Management Protocol (CGMP) Multicast VLAN - Cisco WS-C2950-24 | Software Configuration Guide - Page 110
set for Cisco IOS Release 12.0 on Cisco.com. Security Password None "Passwords" section on page 5-8 and - "Changing the Password" section on Manager page 6-19. System > SNMP Management 4-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 111
set for Cisco IOS Release 12.0 on Cisco.com. Disabled "Enabling Port Security" section on Cluster Manager page 7-14. Security > Port Security Disabled "Configuring TACACS+" section on - page 6-61. Disabled "Configuring Protected Ports" - section on page 7-13. 78-6511-05 Catalyst 2900 Series - Cisco WS-C2950-24 | Software Configuration Guide - Page 112
Default Settings Chapter 4 General Switch Administration 4-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 113
for switch clustering, including which ones can be command switches and which ones can only be member switches, and for the the required software versions and browser and Java plug-in configurations. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-1 - Cisco WS-C2950-24 | Software Configuration Guide - Page 114
Catalyst switches enabled for switch clustering, including which ones can be command switches and which ones can only be member switches, and the required software versions. Command Switch Characteristics The command switch must meet the following requirements: • It is running Cisco IOS Release 12 - Cisco WS-C2950-24 | Software Configuration Guide - Page 115
to a command switch through ports that belong to the same management VLAN (see the "Management VLAN" section on page 5-11). • It is not an active member or the command switch of another cluster. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 116
includes candidates that are connected to a Catalyst 5000 series or Catalyst 6000 switch connected to the command switch. For more information about CDP, see the "Configuring CDP" section on page 6-22. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 117
use the command-switch IP address, you will be prompted a second time for a password when you move between Cluster Builder and VSM. Figure 5-1 shows a group of switches with a standby command switch. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 118
. Figure 5-2 Redundant Cabling to Support HSRP Virtual IP: 172.20.128.223 172.20.128.222 Active command switch 172.20.128.221 Standby command switch Member 1 Member 3 33018 Member 2 Member 4 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-6 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 119
that were added to the cluster while the primary command switch was down. To configure an HSRP standby command group, see the "Designating and Enabling Standby Command Switches" section on page 5-17. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 120
. When the switch joins the cluster, it inherits the command-switch password and retains it when it leaves the cluster. If no command-switch password is configured, the member switch inherits a null password. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-8 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 121
member switches support only levels 1 and 15. - Command-switch privilege levels 1 to 14 map to level 1 on the member switch. - Command-switch privilege level 15 maps to level 15 on the member switch. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 122
, the first read-only and read-write community string on the command switch is propagated and overwrites the fourth read-only and read-write community string on the member switches. To support the 5-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 123
management VLAN of the cluster. If your cluster includes member switches that are running Cisco IOS Release 12.0(5)XP, those members need to have the VLAN changed before using the Management VLAN window. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 124
Port" section on page 7-7. NAT Commands When a cluster is created, Network Address Translation (NAT) commands are added to the configuration file of the command switch. Do not remove these commands. 5-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 125
-Specific Features in Switch Clusters When a switch has features specific to it and the switch is part of a switch cluster, the CMS menu bars display the configuration options of those features. For example, Device > LRE Profile appears in the Cluster Manager menu bar when at least one Catalyst - Cisco WS-C2950-24 | Software Configuration Guide - Page 126
OK, this switch is not added to the cluster. It appears as a candidate switch in Cluster Builder. For information about how to change the management VLAN, see the "Management VLAN" section on page 5-11. 5-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 127
Window Enter the password of the candidate switch. If no password exists for the switch, leave e.d this field blank for the switch to join the cluster. Candidate switch information. 54510 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 128
how to remove Catalyst 1900 or Catalyst 2820 member switches, refer to the Catalyst 1900 Series Installation and Configuration Guide or the Catalyst 2820 Series Installation and Configuration Guide. 5-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 129
priority. If the primary command switch fails, the standby command switch becomes the primary command switch. The standby switch with the next highest priority then becomes the standby command switch. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-17 - Cisco WS-C2950-24 | Software Configuration Guide - Page 130
that you have set by using the CLI. If you use this window to create the HSRP group, all switches in the group have the preempt command enabled, and the name for the group is clustername_standby. 5-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 131
> Inventory. The inventory summary of the cluster members includes information such as switch model numbers, serial numbers, software versions, IP information, location, and any installed modules. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 5-19 - Cisco WS-C2950-24 | Software Configuration Guide - Page 132
the icons, links, and colors used in Cluster Builder, select Help > Legend. To display port-connection information such as port numbers for each end of the link, select Views > Toggle Labels. 5-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 133
command switch. The IOS commands then operate as usual. For instructions on configuring the Catalyst 2900 XL or Catalyst 3500 XL switch for a Telnet session, see the "Accessing the CLI" section on page 3-8. For Catalyst 1900 and Catalyst 2820 switches running standard edition software, the Telnet - Cisco WS-C2950-24 | Software Configuration Guide - Page 134
2820 switches, SNMP is enabled by default. When you create a cluster, the command switch manages the exchange of messages between member switches and an SNMP application. The Cluster Management software appends the member switch number (@esN, where N is the switch number) to the first configured RW - Cisco WS-C2950-24 | Software Configuration Guide - Page 135
Switches Using SNMP to Manage Switch Clusters Figure 5-7 SNMP Management for a Cluster SNMP Manager Command switch Trap 1, Trap 2, Trap 3 Trap Trap 33020 Trap Member 1 Member 2 Member 3 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 136
Using SNMP to Manage Switch Clusters Chapter 5 Clustering Switches 5-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 137
provided in the standard Cisco IOS Release 12.0 documentation. For switch features that use standard Cisco IOS Release 12.0 commands, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI procedures. For information about configuring these settings from - Cisco WS-C2950-24 | Software Configuration Guide - Page 138
enabled the DHCP feature, the switch assumes you are using an external server for IP address allocation. While this feature is enabled, any values you manually enter (from through the default gateway. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-2 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 139
subnet_mask end show running-config Purpose Remove the IP address and subnet mask. Return to privileged EXEC mode. Verify that the information was removed by displaying the running configuration. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 140
feature autoconfiguration to ensure retrieval of configuration files by unicast TFTP messages. BOOTP is available in earlier software releases for this switch BOOTP client functionality on your switch. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 141
received from the server. The amount of information the switch receives depends on how you configure the DHCP server. For more information, see the "Configuring the DHCP Server" section on page 6-6. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 142
(default gateway address to be used by the switch) (required) • TFTP server name (required) • Boot filename (the name of the configuration file that the client needs) (recommended) • Host name (optional) Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-6 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 143
not supported in this release. For more information, see the "Configuring the Relay Device" section on page 6-9. You must also set up the TFTP server with the switch configuration files; for more information, see the next section. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation - Cisco WS-C2950-24 | Software Configuration Guide - Page 144
server. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI procedures. Configuring the Domain Name and the DNS Each unique IP address can have a host name associated with it. The IOS software maintains a cache of host name-to-address - Cisco WS-C2950-24 | Software Configuration Guide - Page 145
If it is on a different LAN, the switch must be able to access it through a relay device or router. For more information, see the "Configuring the Relay Device" section on page 6-9. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI - Cisco WS-C2950-24 | Software Configuration Guide - Page 146
filename is reserved for the switch. The IP address is dynamically allocated to the switch by the DHCP server (one-file read method). The switch follows the same configuration process described above. 6-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 147
server name is not obtained from the DHCP replies, if all attempts to read the configuration file through unicast transmissions fail, or if the TFTP server name cannot be resolved to an IP address. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 148
00e0.9f1e.2004 Cisco router 10.0.0.10 10.0.0.1 10.0.0.2 10.0.0.3 DHCP server DNS server TFTP server (maritsu) Table 6-1 shows the configuration of the reserved leases on the DHCP server. 47571 6-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 149
the host name to be assigned to the switch based on its IP address. The base directory also contains a configuration file for each switch (switch1-confg, switch2-confg, and so forth switch4 10.0.0.24 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 150
the configuration file that corresponds to its host name; for example, it reads switch1-confg from the TFTP server. Switches 2 through 4 retrieve their configuration files and IP addresses in the same way. 6-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 151
] {password} or the enable secret [level level] {password} command. Level 1 is EXEC-mode user privileges. If you do not specify a level, the privilege level defaults to 15 (privileged EXEC-mode privileges). 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 152
"Recovering from a Lost or Forgotten Password" section on page 9-22. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI procedures. 6-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 153
negative and positive numbers for minutes. Configuring Daylight Saving Time You can configure the switch to change to daylight saving time on a particular day every year, on a day that you enter, or not at all. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for - Cisco WS-C2950-24 | Software Configuration Guide - Page 154
. SNMP is always enabled for Catalyst 1900 and Catalyst 2820 switches. For CLI procedures, refer to the Cisco IOS Release 12.0 documentation on Cisco.com for additional information and CLI procedures. 6-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 155
(VMPS) change. Generate a trap for each VLAN Trunk Protocol (VTP) change. Generate the switch-specific traps. These traps are in the private enterprise-specific Management Information Base (MIB). 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-19 - Cisco WS-C2950-24 | Software Configuration Guide - Page 156
the System Catalyst 1900 and Catalyst 2820 switches support up to four trap managers. When you configure community strings for these switches, limit the string length to 32 characters. When configuring traps on these switches, you cannot configure individual trap managers to receive specific traps - Cisco WS-C2950-24 | Software Configuration Guide - Page 157
terminal snmp-server host 172.2.128.263 traps1 snmp vlan-membership end show running-config Purpose Enter global configuration mode. Enter the trap manager IP address, the the running configuration. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-21 - Cisco WS-C2950-24 | Software Configuration Guide - Page 158
series switch. Although the Catalyst 5000 supports CDP, it does not support clustering, and the command switch cannot learn about connected candidate switches connected to it, even if they are running CMS. 6-22 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 159
Candidates through CDP Undisclosed device displays as edge device Cluster command switch Configuring CDP Catalyst 5000 series (CDP device that does not support clustering) 3 hops from command switch Up to 7 hops from command switch 33019 Beginning in privileged EXEC mode, follow these steps to - Cisco WS-C2950-24 | Software Configuration Guide - Page 160
so that it can break all the loops in the network. For example, at least one switch on each loop in the VLAN must be running spanning tree. It is not absolutely necessary to run spanning tree on all 6-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 161
Chapter 6 Configuring the System Configuring STP switches in the VLAN; however, if you are running STP only on a minimal set of switches, an incautious change to the network that introduces another loop into the VLAN can result in a broadcast storm. Note If you have the default allowed list on - Cisco WS-C2950-24 | Software Configuration Guide - Page 162
modular Catalyst 2900 XL and Catalyst 3500 XL switches in three cascaded clusters that use the GigaStack GBIC. Table 6-4 shows the default STP settings and those that are acceptable for these configurations. 6-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 163
cluster connected to a Layer 3 backbone Enabling UplinkFast on all cluster switches can further reduce the time it takes cluster switches to begin forwarding after a new root switch is selected. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-27 - Cisco WS-C2950-24 | Software Configuration Guide - Page 164
update-rate parameter. The default for this parameter is 150 Cisco enhancement that accelerates the choice of a new root port when a link or switch switches and might not be appropriate for backbone devices. 6-28 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 165
Network Backbone switches Root bridge 3500 XL 3500 XL Distribution switches 2900 XL 2900 XL 2900 XL 22037 2900 XL 2900 XL Active link Blocked link 2900 XL 2900 XL Access switches 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-29 - Cisco WS-C2950-24 | Software Configuration Guide - Page 166
3000. This change reduces the chance that the switch will become the root switch. When UplinkFast is disabled, the bridge priorities of all VLANs and path costs of all ports are set to default values. 6-30 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 167
If Switch A fails, if its stack root port fails, or if Link A fails, CSUF selects either the Switch B or Switch C alternate stack root port and puts it into the forwarding state in less than 1 second. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-31 - Cisco WS-C2950-24 | Software Configuration Guide - Page 168
port Alternate stack root port Alternate stack root port Switch A Stack port Switch B Stack port Switch C Stack port 47572 Multidrop backbone (GigaStack GBIC connections port to stack members. 6-32 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 169
the switches performs the fast transition. • The failed link, which connected the stack root to the STP root, comes back up. • A network reconfiguration causes a new stack root switch to be selected. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-33 - Cisco WS-C2950-24 | Software Configuration Guide - Page 170
from all stack switches, heavy network traffic might prevent the fast transition from occurring within this time frame. Instead of a fast transition, the normal STP convergence then occurs. 6-34 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 171
stack ports on the stack of switches must be connected to the multidrop backbone. • You can connect the open ports on the top and bottom GigaStack GBICs within the same stack to form a redundant link. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-35 - Cisco WS-C2950-24 | Software Configuration Guide - Page 172
12 11X 12X 1 1 2 Catalyst 3500 XL 2 1 2 Catalyst 2924M XL Catalyst 2900 1 2 MODE 1x 2x 3x 4x 5x 6x 7x 8x 9x 10x 11x 12x 13x 14x 15x 16x 17x 18x 19x 20x 21x 22x 23x 24x 49069 6-36 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 173
CSUF on an interface, use the no spanning-tree stack-port interface configuration command. To disable UplinkFast on the switch, use the no spanning-tree uplinkfast global configuration command. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-37 - Cisco WS-C2950-24 | Software Configuration Guide - Page 174
its STP learning and listening states to the forwarding state. This wait is necessary so that other switches on the network ensure that no loop is formed before they allow the port to forward packets. 6-38 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 175
specified spanning-tree instance. Enter a number from 0 to 65535; the lower the number, the more likely the switch will be chosen as the root switch. Return to privileged EXEC mode. Verify your entry. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-39 - Cisco WS-C2950-24 | Software Configuration Guide - Page 176
Enter global configuration mode. Specify the interval between hello BPDUs. Hello messages indicate that the switch is active. Enter a number from 1 to 10. Return to privileged EXEC mode. Verify your entry. 6-40 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 177
end of the link is configured as an access port, and the other end is configured as an 802.1Q trunk port, or both ends of the link are configured as 802.1Q trunk ports but have different native VLAN IDs. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 178
Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Enable the Port Fast feature for the port. Return to privileged EXEC mode. Verify your entry. 6-42 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 179
to be configured. Configure the port priority for a specified instance of STP. Enter a number from 0 to 255. The lower the number, the higher the priority. Return to privileged EXEC mode. Verify your entry. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 180
guard enabled Desired root switch Enable the root-guard feature on these interfaces to prevent switches in the customer network from becoming the root switch or being in the path to the root. 6-44 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 43578 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 181
-layer default, standard Ethernet-style ARP encapsulation (represented by the arpa keyword) is enabled on the IP interface. ARP entries added manually to the table do not age and must be manually removed. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 182
of unused CGMP groups. By default, CGMP is enabled, and the Fast Leave feature is disabled. End stations issue join messages to become part of a CGMP group and issue leave messages to leave the group. The membership of these groups is managed by the switch and by connected routers through the - Cisco WS-C2950-24 | Software Configuration Guide - Page 183
configure terminal no cgmp leave-processing end show running-config Purpose Enter global configuration mode. Disable CGMP and CGMP Fast Leave. Return to privileged EXEC mode. Verify your entry. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-47 - Cisco WS-C2950-24 | Software Configuration Guide - Page 184
steps to remove all multicast groups. Step 1 Step 2 Command clear cgmp group show cgmp Purpose Clear all CGMP groups on all VLANs on the switch. Verify your entry by displaying CGMP information. 6-48 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 185
two VLANs. Because MVR does not support IGMP dynamic joins, the user or administrator must configure static switch CPU sends an IGMP group-specific query through the receiver port VLAN. If there is another 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 186
-top box TV data Set-top box PC 47849 TV RP = Receiver Port SP = Source Port TV Note: All source ports belong to the multicast VLAN. 6-50 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 187
change the MVR parameters after MVR groups have been configured, follow these steps: a. Enter the no mvr command to disable MVR. b. Enter the mvr vlan command to change the multicast VLAN. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-51 - Cisco WS-C2950-24 | Software Configuration Guide - Page 188
switch. • The receiver VLAN is the VLAN to which the first configured receiver port belongs. If the first receiver port is a dynamic port with an unassigned VLAN, it becomes an inactive receiver port and does not take part in MVR unless it is assigned to the receiver VLAN. The receiver VLAN is reset - Cisco WS-C2950-24 | Software Configuration Guide - Page 189
received on a receiver port before it is administratively shut down. The default is 20. Exit configuration mode. Verify the configuration. Save your configuration changes to nonvolatile RAM (NVRAM). 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-53 - Cisco WS-C2950-24 | Software Configuration Guide - Page 190
ports as protected ports with port blocking enabled. • Configure uplink ports that receive and send multicast data as source ports. All source ports on a switch belong to the single multicast VLAN. 6-54 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 191
receiver ports and should only be enabled on receiver ports to which a single receiver device is connected. Exit configuration mode. Verify the configuration. Save your configuration changes to NVRAM. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-55 - Cisco WS-C2950-24 | Software Configuration Guide - Page 192
Secure addresses do not age. • Static address: a manually entered unicast or multicast address that does not age and that is not lost when the switch resets. The address tables list the destination MAC address and the VLAN ID, module, and port number associated with the address. Figure 6-11 shows an - Cisco WS-C2950-24 | Software Configuration Guide - Page 193
configuration mode. Enter the number of seconds that dynamic addresses are to be retained in the address table. You can enter a number from 10 to 1000000. Return to privileged EXEC mode. Verify your entry. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 194
-table secure Enter the MAC address, its associated port, and the VLAN hw-addr interface vlan vlan-id ID. end Return to privileged EXEC mode. show mac-address-table secure Verify your entry. 6-58 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 195
addresses are entered in the address table with an in-port-list, an out-port-list, and a VLAN ID, if needed. Packets received from the in-port list are forwarded to ports listed in the out-port-list. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-59 - Cisco WS-C2950-24 | Software Configuration Guide - Page 196
. end Return to privileged EXEC mode. show mac-address-table static Verify your entry. You can remove all secure addresses by using the clear mac-address-table static command in privileged EXEC mode. 6-60 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 197
in this chapter, refer to the Cisco IOS Release 12.0 Security Command Reference. You can only configure this feature by using the CLI; you cannot configure it through the Cluster Management Suite. In large enterprise networks, the task of administering passwords on each device can be simplified by - Cisco WS-C2950-24 | Software Configuration Guide - Page 198
out. • Encryption key to encrypt and decrypt all traffic between the router and the daemon. • Number of attempts that a user can make when entering a command that is being authenticated by TACACS+. 6-62 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 199
the tacacs-server key commands (Step 5). Enter the number of times the server searches the list of TACACS+ servers before stopping. The default is two. Set the interval that the server waits entries. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-63 - Cisco WS-C2950-24 | Software Configuration Guide - Page 200
lists of authentication methods. line [aux | console | tty | vty] line-number [ending-line-number] Enter line configuration mode, and configure the lines to which you want to apply the authentication list. login authentication {default | Apply the authentication list to a line or set of lines - Cisco WS-C2950-24 | Software Configuration Guide - Page 201
database if authentication was not done using TACACS+. Note Authorization is bypassed for authenticated users who login through the CLI even if authorization has been configured. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 6-65 - Cisco WS-C2950-24 | Software Configuration Guide - Page 202
PPP, and PPP NCPs. exit Return to privileged EXEC mode. Note These commands are documented in the "Accounting and Billing Commands" chapter of the Cisco IOS Release 12.0 Security Command Reference. 6-66 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 203
Step 6 aaa authorization network local username name password password privilege level Purpose Enter global configuration mode. Enable AAA. Set the login authorization to default to local. Configure user AAA authorization for all network-related service requests, including SLIP, PPP NCPs, and ARA - Cisco WS-C2950-24 | Software Configuration Guide - Page 204
Configuring TACACS+ Chapter 6 Configuring the System 6-68 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 205
. Review the "Avoiding Configuration Conflicts" section on page 9-2 before you change the port settings. This chapter does not repeat the concepts and CLI procedures provided in the standard Cisco IOS Release 12.0 documentation. For switch features that use standard Cisco IOS Release 12.0 commands - Cisco WS-C2950-24 | Software Configuration Guide - Page 206
that does not autonegotiate, disable autonegotiation on the local device, and set the duplex and flow control parameters to be compatible with the other device. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-2 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 207
. Configure flow control for the port. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entry in the configuration file. This retains the configuration when the switch restarts. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 208
half-duplex transmission on a 100BASE-T link is 148,000 packets per second, but you can enter a threshold of up to 4294967295 broadcast packets per second. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-4 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 209
interface] Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to configure. Disable port storm control. Return to privileged EXEC mode. Verify your entries. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 210
Flooding Controls Chapter 7 Configuring the Switch Ports Blocking Flooded Traffic on a Port By default, the switch floods packets with unknown destination MAC addresses to all ports. Some configurations do not require flooding. For example, a port that has only manually assigned addresses has no - Cisco WS-C2950-24 | Software Configuration Guide - Page 211
can assign only one network port per VLAN. For the restrictions that apply to a network port, see the "Changing the Password" section on page 6-15. Caution A network port cannot link cluster members. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 212
Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Disable the port as the network port. Return to privileged EXEC mode. Verify your entry. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-8 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 213
Enable UDLD on all switch ports. Use the udld interface configuration command to enable UDLD on a specific port. Return to privileged EXEC mode. Verify the entry by displaying the running configuration. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 214
can configure an unlimited number of ports in a destination-based port group. You can create up to 12 port configure port groups that link switches, but you must consistently configure both ends of a port group. 7-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 215
Catalyst 2900 XL or Catalyst 3500 XL switch Cisco router The switch treats the port group as a single logical port; therefore, when you create a port group, the switch uses the configuration default), configure Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 216
interface port group 1 distribution destination end show running-config Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port of Verify your entries. 7-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 217
unicast, broadcast, or multicast traffic between ports on the switch, and traffic between ports on the same switch is forwarded through a Layer 3 device such as a router. To meet this requirement, you can configure Catalyst 2900 XL and Catalyst 3500 XL ports as protected ports (also referred to as - Cisco WS-C2950-24 | Software Configuration Guide - Page 218
table for the port can contain. The number of unauthorized addresses seen on the port. For the restrictions that apply to secure ports, see the "Avoiding Configuration Conflicts" section on page 9-2. 7-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 219
port security Purpose Enter global configuration mode. Enter interface configuration mode for the port you want to unsecure. Disable port security. Return to privileged EXEC mode. Verify the entry. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 220
Enter global configuration mode. Enter interface configuration mode, and enter the port number of the monitor port. Disable port monitoring on the port. Return to privileged EXEC mode. Verify your entries. 7-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 221
shows one way to configure a Cisco 7960 IP Phone. Figure 7-2 Cisco 7960 IP Phone Connected to a Catalyst 3524-PWR XL Switch Catalyst PC 3524-PWR XL Cisco 7960 IP Phone IP 33048 802.1Q trunk 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-17 - Cisco WS-C2950-24 | Software Configuration Guide - Page 222
be configured. Instruct the switch to use 802.1p priority tagging for voice traffic and to use VLAN 0 (default native VLAN) to carry all traffic. Return to privileged EXEC mode. Verify the port configuration. 7-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 223
data with a priority of 3. Return to privileged EXEC mode. Verify the change. Use the no switchport priority extend command to return the port to its default setting. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-19 - Cisco WS-C2950-24 | Software Configuration Guide - Page 224
enter the port to be configured. switchport priority default (0) Assign an IEEE 802.1p priority to untagged traffic that is received on the switch port. The Cisco IP Phone forwards this traffic through the native VLAN, VLAN 1. switchport voice vlan (2) Instruct the Cisco IP Phone to forward all - Cisco WS-C2950-24 | Software Configuration Guide - Page 225
configured. Permanently disable inline power on the port. To enable inline power when a Cisco 7960 IP Phone is detected, use the power inline auto command. Return to privileged EXEC mode. Verify the change. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 226
connections: • LRE link-This is the connection between the switch LRE port and the WALL port on the Cisco 575 LRE customer premises equipment (CPE). This connection can be the CPE to the LRE port. 7-22 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 227
, the higher the link speed, the shorter the maximum distance. Private profiles are assigned on a per-port basis. The ports on an LRE switch can be assigned the same or different private profiles. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-23 - Cisco WS-C2950-24 | Software Configuration Guide - Page 228
ETSI LRE-5 LRE-10 (default) LRE-15 Profile Type configured on the switch, the LRE port uses its private profile. If you assign a different private profile to the LRE port, the change immediately takes effect. 7-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 229
port speed and duplex mode is supported. The default speed for the CPE Ethernet port is auto; the default duplex mode is half duplex. When configuring the Ethernet link on the LRE duplex and 100-Mbps full duplex. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-25 - Cisco WS-C2950-24 | Software Configuration Guide - Page 230
by the switch LRE chipset, and the statistics collected by the CPE LRE chipset. For information about this command, refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. 7-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 231
To disable the public profile on the switch, use the no lre profile global global configuration command. Changes to the public profile Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 232
the LRE ports on the switch. The default active private profile on all LRE ports is LRE-10. The switch resets the ports with the updated Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. 7-28 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 233
. Review the "Avoiding Configuration Conflicts" section on page 9-2 before you change the port settings. This chapter does not repeat the concepts and CLI procedures provided in the standard Cisco IOS Release 12.0 documentation. For switch features that use standard Cisco IOS Release 12.0 commands - Cisco WS-C2950-24 | Software Configuration Guide - Page 234
Defined Networks Cisco router Catalyst 3500 series XL Engineering VLAN Marketing VLAN Accounting VLAN Fast Ethernet Catalyst 2900 series XL Catalyst 2900 series XL Floor 3 Floor 2 Floor 1 15933 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-2 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 235
the Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. Trunking is not supported on all switches and modules. For the list of products that support trunking, refer to the release notes. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 236
must exist from the network management station to all switches involved in the management VLAN change. • Switches running a version of IOS software that is earlier than Cisco IOS 12.0(5)XP cannot change the management VLAN. • Switches running Cisco IOS 12.0(5)XP should be upgraded to the current - Cisco WS-C2950-24 | Software Configuration Guide - Page 237
active link at the time of this change become members of the new management VLAN. For information about the role management VLANs play in switch clusters, see the "Management VLAN" section on page 5-11. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 238
mode. Change the management VLAN for the cluster. This ends your Telnet session. Move the port through which you are connected to the switch to a port in the new management VLAN. Verify the change. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-6 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 239
VLAN and is manually assigned. By default, all ports are static-access ports assigned to VLAN 1. Multi-VLAN A multi-VLAN port can belong to up to 250 VLANs (some models only support 64 VLANs) and is manually assigned. You cannot configure a multi-VLAN port when a trunk is configured on the switch - Cisco WS-C2950-24 | Software Configuration Guide - Page 240
transparent mode (VTP is disabled). No VTP configuration is required. Some restrictions apply to multi-VLAN ports. For more information, see the "Avoiding Configuration Conflicts" section on page 9-2. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-8 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 241
interval and the retry count on the VMPS client switch. You can define the allowed-VLAN list, change the pruning-eligible list, and configure the native VLAN for untagged traffic on the trunk port. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 242
Configuring a switch port for multi-VLAN mode causes VTP to transition to transparent mode, which disables VTP. end Return to privileged EXEC mode. show interface interface-id switchport Verify your entries. 8-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 243
Port in multi-VLAN mode Caution To avoid unpredictable STP behavior and a loss of connectivity, do not connect multi-VLAN ports to hubs or switches. Connect multi-VLAN ports to routers or servers. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 244
2900 XL or Catalyst 3500 XL switch, and have those changes automatically communicated to all the other switches in the network. Without VTP, you cannot send information about VLANs to other switches. 8-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 245
are not transmitted to other switches in the domain, and they affect only the individual switch. For domain name and password configuration guidelines, see the "Domain Names" section on page 8-18. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 246
You can create, modify, and delete VLANs on a switch in VTP transparent mode. In VTP transparent mode, VLAN configurations are saved in nonvolatile RAM, but they are not advertised to other switches. 8-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 247
. VTP advertisements distribute the following global domain information in VTP advertisements: • VTP domain name • VTP configuration revision number • Update identity and update timestamp • MD5 digest 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 248
configured VLAN: • VLAN ID • VLAN name • VLAN type • VLAN state • Additional VLAN configuration information specific to the VLAN type VTP Version 2 VTP version 2 supports the following features not supported in version 1: • Token Ring support-VTP version 2 supports Token Ring LAN switching and VLANs - Cisco WS-C2950-24 | Software Configuration Guide - Page 249
Switch 4 Port 2 Flooded traffic is pruned. Port 4 Catalyst 2900 XL or Catalyst 3500 XL Switch 2 Switch 5 Flooded traffic is pruned. Port 5 Port 1 Red VLAN Switch 6 Switch 3 Switch 1 30768 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 250
. If you are adding a new switch to an existing network that has VTP capability, the new switch learns the domain name only after the applicable password has been configured on the switch. 8-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 251
Chapter 8 Configuring VLANs Using VTP Upgrading from Previous Software Releases When you upgrade from a software version that supports VLANs but does not support VTP, such as Cisco IOS Release 11.2(8)SA3, to a version that does support VTP, ports that belong to a VLAN retain their VLAN membership, - Cisco WS-C2950-24 | Software Configuration Guide - Page 252
this command, refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. Note The Cisco IOS end and Ctrl-Z commands are not supported in VLAN database mode. After you configure VTP, you must configure a trunk port so that the switch can send and receive VTP advertisements - Cisco WS-C2950-24 | Software Configuration Guide - Page 253
. Configure the switch for VTP server mode (the default). Return to privileged EXEC mode. Verify the VTP configuration. In the display, check the VTP Operating Mode and the VTP Domain Name fields. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-21 - Cisco WS-C2950-24 | Software Configuration Guide - Page 254
2 Step 3 Step 4 Step 5 Step 6 Command vlan database vtp client vtp domain domain-name vtp password password-value exit show vtp status Purpose Enter VLAN database mode. Configure the switch for VTP client mode. The default setting is VTP server. Configure a VTP administrative-domain name. The name - Cisco WS-C2950-24 | Software Configuration Guide - Page 255
mode. The default setting is VTP server. This step disables VTP on the switch. Return to privileged EXEC mode. Verify the VTP configuration. In the display, check the VTP Operating Mode field. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-23 - Cisco WS-C2950-24 | Software Configuration Guide - Page 256
switches. Update the VLAN database, propagate it throughout the administrative domain, and return to privileged EXEC mode. Verify that VTP version 2 is enabled. In the display, check the VTP V2 Mode field. 8-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 257
pruned. By default, VLANs 2 through 1001 are pruning eligible on Catalyst 2900 XL and Catalyst 3500 XL trunk ports. For information, see the "Changing the Pruning-Eligible List" section on page 8-42. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-25 - Cisco WS-C2950-24 | Software Configuration Guide - Page 258
monitor VTP activity: Step 1 Step 2 Command show vtp status show vtp counters Purpose Display the VTP switch configuration information. Display counters about VTP messages being sent and received. 8-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 259
one of the supported switches. Switches running this IOS release advertise information about the following Token Ring VLANs when running VTP version 2: • Token Ring TrBRF VLANs • Token Ring TrCRF VLANs For more information on configuring Token Ring VLANs, refer to the Catalyst 5000 Series Software - Cisco WS-C2950-24 | Software Configuration Guide - Page 260
exclusively. Because FDDI and Token Ring VLANs are not locally supported, you configure FDDI and Token Ring media-specific characteristics only for VTP global advertisements to other switches. 8-28 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 261
active VLANs in the VTP Database Range 1-1005 No range 1-4294967294 1500-18190 0-1005 0-1005 active, suspend Range 1-1005 No range 1-4294967294 1500-18190 1-4095 0-1005 0-1005 0-1005 active, suspend 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-29 - Cisco WS-C2950-24 | Software Configuration Guide - Page 262
Parameter VLAN ID VLAN name 802.10 SAID MTU size Bridge number STP type Translational bridge 1 Translational bridge 2 VLAN state Default 1005 VLANxxxx, where xxxx is the VLAN ID 100000+VLAN ID VTPv1 1500; VTPv2 4472 VTPv1 0; VTPv2 user-specified ibm 0 0 active Chapter 8 Configuring VLANs Range - Cisco WS-C2950-24 | Software Configuration Guide - Page 263
; VTPv2 default 4472 0 0 active srb 7 7 disabled VLANs in the VTP Database Range 1-1005 No range 1-4294967294 1-4095 0-1005 1500-18190 0-1005 0-1005 active, suspend srb, srt 0-13 0-13 disable; enable 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-31 - Cisco WS-C2950-24 | Software Configuration Guide - Page 264
in detail in this section. For complete information on the commands and parameters that control VLAN configuration, refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL Command Reference. 8-32 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 265
VTP Database Adding a VLAN Each VLAN has a unique, 4-digit ID that can be a number from 1 to 1001. To add a VLAN to the VLAN database, assign a number and name to the VLAN. For the list of default parameters that are assigned when you add a VLAN, see the "Default VLAN Configuration" section on page - Cisco WS-C2950-24 | Software Configuration Guide - Page 266
the VLAN configuration. Deleting a VLAN from the Database When you delete a VLAN from a switch that is in VTP server mode, the VLAN is removed from all switches in the VTP domain. When you delete a VLAN from a switch that is in VTP transparent mode, the VLAN is deleted only on that specific switch - Cisco WS-C2950-24 | Software Configuration Guide - Page 267
. Assign the port to the VLAN. Return to privileged EXEC mode. Verify the VLAN configuration. In the display, check the Operation Mode, Access Mode VLAN, and the Priority for Untagged Frames fields. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-35 - Cisco WS-C2950-24 | Software Configuration Guide - Page 268
series switch Catalyst 2900 XL switch ISL trunk ISL trunk Catalyst 3500 XL switch VLAN1 VLAN3 ISL trunk Catalyst 2900 XL switch ISL trunk Catalyst 3500 XL switch VLAN2 VLAN2 VLAN1 VLAN3 15929 8-36 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 269
Table 8-11 Trunks Interacting with Other Features Switch Feature Port monitoring Network port Secure ports Trunk Port Interaction A trunk port cannot be a monitor port. A static-access port can monitor the traffic of its VLAN on a trunk port. When configured as a network port, a trunk port serves - Cisco WS-C2950-24 | Software Configuration Guide - Page 270
ensure that at least one trunk port is configured on the switch and that this trunk port is connected to the trunk port of a second switch. Otherwise, the switch cannot receive any VTP advertisements. 8-38 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 271
Operational Trunking Encapsulation fields. Save the configuration. Note This software release does not support trunk negotiation through the Dynamic Trunk Protocol (DTP), formerly known as Dynamic ISL (DISL). If you are connecting a trunk port to a Catalyst 5000 switch or other DTP device, use the - Cisco WS-C2950-24 | Software Configuration Guide - Page 272
port automatically becomes a member of the enabled VLAN. When VTP detects a new VLAN and the VLAN is not in the allowed list for a trunk port, the trunk port does not become a member of the new VLAN. 8-40 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 273
. Valid IDs are from 2 to 1001. end Return to privileged EXEC. show interface interface-id switchport allowed-vlan Verify your entries. copy running-config startup-config Save the configuration. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-41 - Cisco WS-C2950-24 | Software Configuration Guide - Page 274
of IDs. Valid IDs are from 2 to 1001. VLANs that are pruning-ineligible receive flooded traffic. exit Return to privileged EXEC mode. show interface interface-id switchport Verify your settings. 8-42 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 275
1 to 1001. Verify your settings. If a packet has a VLAN ID the same as the outgoing port native VLAN ID, the packet is transmitted untagged; otherwise, the switch transmits the packet with a tag. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-43 - Cisco WS-C2950-24 | Software Configuration Guide - Page 276
untagged frames. For ISL or IEEE 802.1Q frames with tag information, the priority value from the header frame is used. For native frames, the default priority of the input port is used. 8-44 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 277
of 4 through 7 are sent to a high-priority queue. 1. Catalyst 2900 XL switches with 4 MB of DRAM and the WS-X2914-XL and the WS-X2922-XL modules only have one transmit queue and do not support QoS. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-45 - Cisco WS-C2950-24 | Software Configuration Guide - Page 278
sharing using STP path costs, each load-sharing link can be connected to the same switch or to two different switches. For more information about STP, see the "Configuring STP" section on page 6-24. 8-46 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 279
transmits or receives all traffic for the VLAN. Figure 8-5 shows two trunks connecting supported switches. In this example, the switches are configured as follows: • VLANs 8 through 10 are assigned a port priority of 10 on trunk 1. • VLANs 3 through 6 retain the default port priority of 128 on trunk - Cisco WS-C2950-24 | Software Configuration Guide - Page 280
Fa0/1 and Fa0/2. When the trunk links come up, VTP passes the VTP and VLAN information to Switch 2. Verify the Switch 2 has learned the VLAN configuration. Enter global configuration mode on Switch 1. 8-48 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 281
Enter interface configuration mode, and define the interface to set the STP port priority. Assign the port priority of 10 for VLANs 3, 4, 5, and 6. Return to privileged EXEC mode. Verify your entries. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-49 - Cisco WS-C2950-24 | Software Configuration Guide - Page 282
Trunks with Traffic Distributed by Path Cost Switch 1 Trunk port 1 VLANs 2-4 (path cost 30) VLANs 8-10 (path cost 19) Trunk port 2 VLANs 8-10 (path cost 30) VLANs 2-4 (path cost 19) 16591 Switch 2 8-50 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 283
spanning-tree vlan 2 3 4 cost 30 Set the spanning-tree path cost to 30 for VLANs 2, 3, and 4. Step 11 end Return to global configuration mode. Step 12 Repeat Steps 9 through 11 on Switch 1 Fa0/2. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-51 - Cisco WS-C2950-24 | Software Configuration Guide - Page 284
entry in the configuration table to deny access to specific MAC addresses for security reasons. If you enter the none keyword for the VLAN name, the VMPS sends an access-denied or port-shutdown response. 8-52 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 285
host connected to the dynamic port and attempts to match the MAC address to a VLAN in the VMPS database. If there is a match, the VMPS sends the VLAN number for that port. If the client switch was not previously configured, it uses the domain name from the first VTP packet it receives on its trunk - Cisco WS-C2950-24 | Software Configuration Guide - Page 286
3500 XL switch running this software release cannot act as the VMPS. Use a Catalyst 5000 series switch as the VMPS. The VMPS database configuration file on the server must use the Catalyst 2900 XL and Catalyst 3500 XL convention for naming ports. For example, Fa0/5 is fixed-port number 5. If the - Cisco WS-C2950-24 | Software Configuration Guide - Page 287
vlan-group Engineering port-group WiringCloset1 vmps-port-policies vlan-name Green device 192.168.1.1 port Fa0/9 vmps-port-policies vlan-name Purple device 192.168.2.2 port Fa0/10 port-group "Executive Row" 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 288
ports cannot be network ports or monitor ports. • The VTP management domain of the VMPS client and the VMPS server must be the same. 8-56 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 289
default VMPS and dynamic port configuration on client switches. Table 8-13 Default VMPS Client and Dynamic Port Configuration Feature VMPS domain server VMPS reconfirm interval VMPS server retry count Dynamic ports Default Configuration None 60 minutes 3 None configured Configuring Dynamic VLAN - Cisco WS-C2950-24 | Software Configuration Guide - Page 290
check the Operational Mode field. The switch port that is connected to the VMPS server should be configured as a trunk. For more information, see the "Configuring a Trunk Port" section on page 8-38. 8-58 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 291
VLAN membership. Enter a number from 1 to 120. The default is 60 minutes. Return to privileged EXEC mode. Verify the dynamic VLAN reconfirmation status. In the display, check the Reconfirm Interval field. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 292
the VMPS Works Chapter 8 Configuring VLANs Changing the Retry Count Beginning in privileged EXEC mode, follow these steps to change the number of times that the switch attempts to contact the VMPS before querying the next server: Step 1 Step 2 Command configure terminal vmps retry count Step - Cisco WS-C2950-24 | Software Configuration Guide - Page 293
to these clients: - Catalyst 2900 XL Switch 2 - Catalyst 3500 XL Switch 9 • The database configuration file is called Bldg-G.db and is stored on the TFTP server with the IP address 172.20.22.7. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-61 - Cisco WS-C2950-24 | Software Configuration Guide - Page 294
8 Dynamic-access port Switch 9 Secondary VMPS Server 3 Switch 10 172.20.26.157 Client 172.20.26.158 Trunk port 172.20.26.159 30769 Ethernet segment (Trunk link) TFTP server Router 172.20.22.7 8-62 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 295
• Troubleshooting switch upgrades • Recovering from corrupted software • Recovering from a lost or forgotten password For additional troubleshooting information, refer to the switch hardware installation guide. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration - Cisco WS-C2950-24 | Software Configuration Guide - Page 296
but can be monitored. 4. Cannot connect cluster members to the command switch. 5. Switch Port Analyzer (SPAN) can operate only if the monitor port or the port being monitored is not a protected port. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-2 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 297
switch performance and ensure a link, follow one of these guidelines when changing the settings for duplex and speed: • Let both ports autonegotiate both speed and duplex. • Manually the remote device. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 298
Configuration Chapter 9 Troubleshooting Troubleshooting LRE Port Configuration Table 9-2 lists problems you might encounter when configuring and monitoring the Long-Reach Ethernet (LRE) ports on the Catalyst 2900 LRE XL switches. Table 9-2 LRE Port Problems Problem as motors and power surges) is - Cisco WS-C2950-24 | Software Configuration Guide - Page 299
Cluster Management Suite or Visual Switch Manager from the Cisco Systems Access page. Suggested Solution A missing browser Java plug-in or incorrect settings could cause this problem. • CMS requires a Java plug-in to function correctly. For instructions on downloading and installing the plug-in - Cisco WS-C2950-24 | Software Configuration Guide - Page 300
default). 6. Click Custom Level and verify that the four ActiveX settings are set to prompt or enabled. Configuration : (For switches running software earlier than Cisco IOS Release 12.0(5)WC(1).) 1. Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-6 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 301
current status and actions of CMS. To display the console, select Start > Programs > Java Plug-in Control Panel, and select Java Console. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 302
with a yellow label to display the device pop-up menu, and select Disqualification Code to display the reason it could not join the cluster. 54506 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-8 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 303
from the host arno to the switch Flash memory: switch# copy tftp://arno//2900/config.text flash:config.text You can enter the following parameters as part of a filename: • TFTP • Flash • RCP • XMODEM 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 304
is not supported on this hardware. The switch in this case tries to load the image, but because this switch is not capable of loading this image, the bootup process fails. This also happens in cases when a 4-MB Catalyst 2900 XL switch is upgraded to an IOS 12.0 image. Download the IOS Image File - Cisco WS-C2950-24 | Software Configuration Guide - Page 305
download the IOS Image File using X-Modem. 4. After setting the BOOT parameters, reload the switch by entering the reload privileged EXEC command. The switch boots up automatically with the correct image. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 306
Enter end to return to privileged EXEC mode, and save the configuration by entering the write memory command. 6. Verify the boot parameters by entering show boot. Verify that Manual Boot is set to no. 9-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 307
to the switch. Recovery procedures include the following topics: • Recovering from lost member connectivity • Recovering from a command-switch failure • Recovering from a lost or forgotten password • Recovering from corrupted software Recovering from Lost Member Connectivity Some configurations can - Cisco WS-C2950-24 | Software Configuration Guide - Page 308
Recovery Procedures Chapter 9 Troubleshooting Recovering from a Command Switch Failure This section describes how to recover from a failed command switch. If you are running IOS Release 12.0(5)XU, you can configure a redundant command switch group by using the Hot Standby Router Protocol (HSRP). - Cisco WS-C2950-24 | Software Configuration Guide - Page 309
From global configuration mode, remove previous command-switch information from the switch. Switch(config)# no cluster commander-address Return to privileged EXEC mode. Switch(config)# exit Switch# 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 310
Recovery Procedures Chapter 9 Troubleshooting Step 9 Use the setup program to configure the switch IP information. This program prompts you for an IP address, subnet mask, default gateway, and password. From privileged EXEC mode, enter setup, and press Return. Switch# setup --- System - Cisco WS-C2950-24 | Software Configuration Guide - Page 311
Chapter 9 Troubleshooting Recovery Procedures Step 16 Enter the password of the failed command switch, and press Return. Note The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows spaces, but ignores leading spaces. Enter enable secret: - Cisco WS-C2950-24 | Software Configuration Guide - Page 312
prompts you to add candidate switches. The password of the failed command switch is still valid for the cluster, and you should enter it when candidate switches are proposed for cluster membership. 9-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 313
by using Telnet. For details about using the console port, refer to the switch hardware installation guide. At the switch prompt, change to privileged EXEC mode: Switch> enable Switch# Enter the password of the failed command switch. Use the setup program to configure the switch IP information. This - Cisco WS-C2950-24 | Software Configuration Guide - Page 314
standalone switch. Note If you enter N, the switch appears as a candidate switch in Cluster Builder. In this case, the message in Step 20 is not displayed. Would you like to enable as a cluster command switch? y 9-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 315
prompts you to add the candidate switches. The password of the failed command switch is still valid for the cluster. Enter it when candidate switches are proposed for cluster membership, and click OK. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-21 - Cisco WS-C2950-24 | Software Configuration Guide - Page 316
in this procedure if you have forgotten or lost the switch password. Step 1 Connect a terminal or PC with terminal emulation software to the console port. For more information, refer to the switch installation guide. Note You can configure your switch for Telnet by following the procedure in the - Cisco WS-C2950-24 | Software Configuration Guide - Page 317
.text 1728000 bytes total (456704 bytes free) Rename the configuration file to config.text.old. This file contains the password definition. switch: rename flash:config.text flash:config.text.old 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 9-23 - Cisco WS-C2950-24 | Software Configuration Guide - Page 318
switch(config)# exit switch# Step 17 Write the running configuration to the startup configuration file: switch# copy running-config startup-config The new password is now included in the startup configuration. 9-24 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 319
Chapter 9 Troubleshooting Recovery Procedures Recovering from Corrupted Software Switch software can be corrupted during an upgrade, by downloading the wrong file to the switch, and by deleting the image file. In all these cases, the switch does not pass the power-on self-test (POST), and there is - Cisco WS-C2950-24 | Software Configuration Guide - Page 320
Recovery Procedures Chapter 9 Troubleshooting 9-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 321
system software. This appendix contains the following sections: • How to Read System Error Messages, page A-2 • Error Message Traceback Reports, page A-4 • Error Message and Recovery Procedures, page A-5 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 322
facility can be a hardware device, a protocol, or a module of the system software. Table A-1 lists the system facility codes. . Table A-1 Facility Codes Code CHASSIS Runtime Diagnostic Storm Control A-2 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 323
portion of the message sometimes contains detailed information about the event, including terminal port numbers, network addresses, or addresses that character Character string Hexadecimal integer Internet address Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide A-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 324
you report a problem to your technical support representative. The following sample message includes traceback information: -Process= "Exec", level= 0, pid= 17 -Traceback= 1A82 1AB4 6378 A072 1054 1860 A-4 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 325
: Received member configuration from member [dec] Explanation This message means that the command switch received a member configuration: [dec] is the member number. Action No action is required. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide A-5 - Cisco WS-C2950-24 | Software Configuration Guide - Page 326
the switch in an environment that is within 32 to 113°F (0 to 45°C). • Make sure fan intake and exhaust areas are clear. If a multiple-fan failure is causing the switch to overheat, replace the switch. A-6 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511 - Cisco WS-C2950-24 | Software Configuration Guide - Page 327
GBIC. Either the neighboring switch does not support the GigaStack Loop breaking software is running on all switches in the stack. Check the GigaStack GBICs involved to make sure they are functioning. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 328
Check for duplex mismatches between both ends of the link. Note The previous the switch, or by someone disconnecting the CPE LRE cable or cycling its power. switch can exchange configuration information A-8 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 329
switch or CPE is faulty, contact Cisco Systems. Module Message This section contains the Module error message. MODULES-3-MAC_TBL_SIZE Explanation This messages means that dynamic module insertion supports 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide A-9 - Cisco WS-C2950-24 | Software Configuration Guide - Page 330
, when a switched network reconfigures, due to either manual or STP reconfiguration end of the interface, it is likely that the Ethernet transceiver at one end of the link is faulty and should be replaced. A-10 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 331
on a port that has been configured to be shut down if a storm event is detected Action Once the source of the packet storm has been fixed, re-enable the port by using port-configuration commands. 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide A-11 - Cisco WS-C2950-24 | Software Configuration Guide - Page 332
Error Message and Recovery Procedures Appendix A System Error Messages A-12 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 333
59 switches to cluster 5-14 VLAN to database 8-33 address count, secure 7-15 resolution 6-45 security violations 7-14 see also addresses addresses dynamic accelerated aging 6-26 aging time 6-57 default aging 6-26 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration - Cisco WS-C2950-24 | Software Configuration Guide - Page 334
features 8-37 VLAN membership 8-7 authentication NTP 6-18 TACACS+ 6-61 authorization, TACACS+ 6-61 automatic discovery, cluster candidates 5-4 autonegotiation connecting to devices without 7-2 mismatches 9-3 IN-2 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 335
1-16 Cisco LRE 48 POTS Splitter (PS-1M-LRE-48) 1-6, 1-20 Cisco SoftPhone software 1-16 CiscoWorks 2000 1-8, 4-8 Class of service see CoS CLI 1-7 accessing 3-8 command modes 3-2 error messages 3-7 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-3 - Cisco WS-C2950-24 | Software Configuration Guide - Page 336
IOS Release 12 icons 2-27 topology 2-24 device icon colors 2-24 device icons 2-24 device labels 2-25 VLAN, changing 8-4 managing 5-21, 5-22 overview 5-1 planning considerations 5-4 host names 5-10 IP addresses 5-8 IN-4 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 337
5-13 management VLAN 5-11 NAT commands 5-12 network port 5-12 passwords 5-8 SNMP community strings 5-10 standby command switches 5-5 planning considerations, switch-specific features 5-13 redundancy 5-17 removing switches from 5-14 requirements 5-2 standby command-switch characteristics 5-3 cluster - Cisco WS-C2950-24 | Software Configuration Guide - Page 338
3-5 resetting to defaults 3-5 show cluster members 5-21 spanning-tree root guard 6-45 stp-list 6-24 undoing 3-5 usage basics 3-2 command switch and management 4-6 and managing with SNMP 5-22 characteristics 5-2 configuration conflicts 9-13 defined 5-2 enabling 5-14 privilege levels 5-21 recovery - Cisco WS-C2950-24 | Software Configuration Guide - Page 339
clusters 5-17 RMON groups 4-6 SNMP 6-18 speed 7-2, 7-3 standby command groups 5-17 static addresses (EtherChannel) 6-61 STP 6-24 Cross-stack UplinkFast 6-31 port priorities 8-48 root guard 6-44, 6-45 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-7 - Cisco WS-C2950-24 | Software Configuration Guide - Page 340
default settings, changing 4-9 deleting VLAN from database 8-34 destination-based forwarding 7-11 destination-based port groups 6-61, 7-10 device pop-up menu 2-19 Cluster Manager 2-19 Cluster View 2-28 VSM 2-19 IN-8 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide - Cisco WS-C2950-24 | Software Configuration Guide - Page 341
6-25 Switch Port Analyzer (SPAN) 7-16 trunking on a port 8-40 trunk port 8-40 VTP 8-23 VTP version 2 8-25 DISL 8-39 disqualification code 9-8 DNS configuring 6-8 described 6-8 enabling 6-8 documentation, CD-ROM Catalyst 2900 XL and Catalyst 3500 XL xix Cisco xx documentation, IOS Release 12.0 xvi - Cisco WS-C2950-24 | Software Configuration Guide - Page 342
8-53 reconfirming 8-59 troubleshooting 8-61 VMPS database configuration file 8-54 Dynamic Trunk Protocol see DTP dynamic VLAN membership 8-57 E egress port scheduling 8-45 eligible switches 5-17 enable password see passwords enable secret password see passwords enabling broadcast storm control - Cisco WS-C2950-24 | Software Configuration Guide - Page 343
defined 6-46 disabling 6-47 enabling 6-47 FDDI-Net VLAN defaults and ranges 8-30 FDDI VLAN defaults and ranges 8-29 features configuration conflicts between 7-1, 8-1 conflicting port 9-2 default settings 4-9 incompatible 9-2 IOS 1-1 feedback to Cisco Systems, web xxi File Transfer Protocol see FTP - Cisco WS-C2950-24 | Software Configuration Guide - Page 344
8-45 inline power, configuring 7-21 inline power LED 2-13 inline power port mode LED 2-10 Integrated Services Digital Network see ISDN interface configuration mode 3-4 interfaces IOS supported 1-7 Inter-Switch Link see ISL inventory, displaying 5-19 IOS command-line interface see CLI IOS Release 12 - Cisco WS-C2950-24 | Software Configuration Guide - Page 345
features 8-37 overview 8-36 J Java plug-in configuration 2-1, 2-35, 4-1, 5-1 L LEDs duplex mode 2-10 front-panel images 2-7 LINE PWR mode 2-10 LRE mode 2-10 port 2-9, 2-11, 2-12, 2-13 redundant power 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 346
2-1 management VLAN changes, understanding 8-4 changing 5-12, 8-4, 8-5 configuring 8-6 IP address 5-11, 8-4 switch clusters 5-11 MANs, Ethernet 1-23 map see topology member pop-up menu Cluster Builder 2-29 IN-14 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 347
see flooding controls multicast traffic and protected ports 7-13 Multicast VLAN Registration see MVR multi-VLAN ports assigning to VLANs 8-10, 8-12 described 8-11 VLAN membership combinations 8-8 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-15 - Cisco WS-C2950-24 | Software Configuration Guide - Page 348
see Cisco LRE POTS Splitter (PS-1M-LRE-48) NTP authentication 6-18 broadcast-client mode 6-18 client 6-17 configuring 6-17 described 6-17 O OK button 2-33 online help 2-33 overheating indication, switch 2-6 IN-16 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 349
old telephone service see POTS splitters planning considerations, switch clusters 5-4 host names 5-10 IP addresses 5-8 LRE profiles 5-13 management VLAN 5-11 NAT commands 5-12 network port 5-12 passwords 5-8 SNMP community strings 5-10 standby command switches 5-5 switch-specific features 5-13 - Cisco WS-C2950-24 | Software Configuration Guide - Page 350
also port groups port scheduling 8-45 port security system error messages A-9 POTS splitters 1-6 homologated 1-20 nonhomologated 1-20 power, inline 7-21 power detection on the Catalyst 3524-PWR 7-21 IN-18 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 351
publications, related xix public mode profiles 7-23 PUBLIC-ANSI 7-24 PUBLIC-ETSI 7-24 Public Switched Telephone Network see PSTN Q QoS egress port scheduling 8-45 ingress port scheduling 8-45, 8-46 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-19 - Cisco WS-C2950-24 | Software Configuration Guide - Page 352
6-25 path cost 8-50 port priority 8-47 UplinkFast 6-28 redundant power system 2-8 relay device, configuring 6-9 releases, switch software 4-2 remote devices without autonegotiation, connecting to 7-2 remote monitoring see RMON remove vlan-list parameter 8-40 removing dynamic address entries 6-58 IP - Cisco WS-C2950-24 | Software Configuration Guide - Page 353
types 6-19, 6-20 SNMP Configuration window 2-17 software recovery procedures 9-25 requirements for changing management VLAN 5-11 joining standby groups 5-3 version numbers, displaying 5-19 VLAN considerations 8-19 see also upgrading software releases 4-2 Software Upgrade window 2-17 source-based - Cisco WS-C2950-24 | Software Configuration Guide - Page 354
guard 6-44, 6-45 settings 6-26, 6-27 STP implementation, changing 6-39 supported number of spanning-tree instances 6-24, 8-2 switch priority 6-39 UplinkFast 6-28, 6-30 VLAN parameters described 6-38 IN-22 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05 - Cisco WS-C2950-24 | Software Configuration Guide - Page 355
LRE profiles 5-13 management VLAN 5-11 NAT commands 5-12 network port 5-12 passwords 5-8 SNMP community strings 5-10 standby command switches 5-5 switch-specific features 5-13 standby command switch characteristics 5-3 troubleshooting 9-8 verifying 5-19 switch images 2-7 LEDs 2-7 polling interval - Cisco WS-C2950-24 | Software Configuration Guide - Page 356
VLAN defaults and ranges 8-30 TrCRF VLAN defaults and ranges 8-31 troubleshooting 9-1 CMS sessions 9-5 switch clusters 9-8 switch upgrades 9-10 with CiscoWorks2000 4-8 trunk ports configuring 8-38 disabling 8-40 trunks allowed-VLAN list 8-40 ATM 8-37 blocking unknown packets on 8-38 IN-24 Catalyst - Cisco WS-C2950-24 | Software Configuration Guide - Page 357
7-13 UniDirectional Link Detection see UDLD Unrecognized Type-Length-Value see TLV support 8-16 upgrading software 4-1 VLAN considerations 8-19 UplinkFast configuring 6-26 enabling 6-30 redundant links 6-28 URLs, Cisco xx user EXEC mode 3-3 User Settings window 2-17 V variable fields definition - Cisco WS-C2950-24 | Software Configuration Guide - Page 358
port membership configuring 8-58 example 8-61 overview 8-53 reconfirming 8-59 troubleshooting 8-61 mapping MAC addresses to VLANs 8-52 monitoring 8-60 overview 8-52 reconfirmation interval, changing 8-59 IN-26 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78 - Cisco WS-C2950-24 | Software Configuration Guide - Page 359
mode, configuring 8-23 traps 6-19 using 8-12 version, determining 8-19 version 1 8-16 version 2 configuration guidelines 8-19 disabling 8-25 enabling 8-24 overview 8-16 VLAN parameters 8-27 78-6511-05 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide IN-27 - Cisco WS-C2950-24 | Software Configuration Guide - Page 360
Index VVID 1-5, 7-18 configuring 7-20 W warnings xviii window components, CMS 2-31 buttons 2-33 host name list 2-32 lists 2-32 online help 2-33 tabs 2-32 X Xmodem protocol 9-25 IN-28 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-05
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 |
 |
Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
Tel:
408 526-4000
800 553-NETS (6387)
Fax:
408 526-4100
Catalyst 2900 Series XL and
Catalyst 3500 Series XL
Software Configuration Guide
Cisco IOS Release 12.0(5)WC(1)
April 2001
Customer Order Number: DOC-786511=
Text Part Number: 78-6511-05