HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G
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- HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 1
ProCurve Series 6120 Switches Advanced Traffic Management Guide August 2009 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 2
Applicable Products HP ProCurve Switch 6120G/XG HP ProCurve Switch 6120XG (498358-B21 connection with the furnishing, performance, or use of this material. The only warranties for HP products and services Warranty See the Customer Support/Warranty information at http://www.hp.com/#Support. A copy of - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 3
ii - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 4
Your Switch Manual Set ix Printed Publications ix Electronic Publications ix Software Feature Index x 1 Getting Started Contents 1-1 Introduction 1-2 Conventions 1-2 Command Syntax Statements 1-2 Command Prompts 1-3 Screen Simulations 1-3 Configuration and Operation Examples 1-3 Keys - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 5
2-23 Adding or Changing a VLAN Port Assignment 2-25 CLI: Configuring Port-Based and Protocol-Based VLAN Parameters 2-27 Web: Viewing and Configuring VLAN Parameters 2-39 802.1Q VLAN Tagging 2-40 Special VLAN Types 2-45 VLAN Support and the Default VLAN 2-45 The Primary VLAN 2-45 The Secure - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 6
VLAN Access Security 2-55 Effect of VLANs on Other Switch Features 2-55 Spanning Tree Operation with VLANs 2-55 IP Interfaces 2-56 VLAN MAC Address 2-56 Port Trunks 2-56 Port Monitoring 2-56 Jumbo Packet Support 2-57 VLAN Restrictions 2-57 3 GVRP Contents 3-1 Overview 3-2 Introduction - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 7
MSTP Operates 4-9 MST Regions 4-9 Regions, Legacy STP and RSTP Switches, and the Common Spanning Tree (CST 4-11 MSTP Operation with 802.1Q VLANs 4-12 Terminology 4-13 Operating Rules 4-15 MSTP Compatibility with RSTP or STP 4-16 Configuring MSTP 4-17 Planning an MSTP Application 4-17 MSTP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 8
4-64 Field Descriptions in MSTP Debug Command Output 4-66 Troubleshooting MSTP Operation 4-69 Loop Protection 4-70 Configuring Loop Protection 4-71 Viewing Loop Protection Status 4-72 5 Quality of Service (QoS): Managing Bandwidth More Effectively Contents 5-1 Introduction 5-3 Terminology - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 9
Quickly Listing Non-Default Codepoint Settings 5-34 Notes on Changing a Priority Setting 5-36 Error Messages caused by DSCP Policy Changes 5-36 Example of Changing the Priority Setting on a Policy When One or More Classifiers Are Currently Using the Policy . 5-37 QoS Queue Configuration 5-40 QoS - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 10
and Routing Guide-Explains how to configure IGMP fea- tures. ■ Access Security Guide-Explains how to configure access security fea- tures and user authentication on the switch. ■ IPv6 Configuration Guide-Describes the IPv6 protocol operations that are supported on the switch. ■ Release Notes - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 11
TFTP) Auto MDIX Configuration BOOTP Config File Console Access Copy Command CoS (Class of Service) Debug DHCP Configuration DHCP/Bootp Operation Diagnostic Tools Manual Management Advanced Multicast and and Traffic Routing Configuration Management X X X X X X X X X X X Access Security Guide - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 12
Applications (SNMP) Passwords and Password Clear Protection ProCurve Manager (PCM) Ping Port Configuration Manual Management Advanced Multicast and and Traffic Routing Configuration Management X X X X X X X X X X X X X X X X X X X X X X Access Security Guide X X X X xi - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 13
+ Authentication Telnet Access TFTP Time Protocols (TimeP, SNTP) Troubleshooting Uni-Directional Link Detection (UDLD) Manual Management Advanced Multicast and and Traffic Routing Configuration Management X X X X X X X X X X X X X X X X X X Access Security Guide X X X X X X X X xii - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 14
Intelligent Edge Software Features VLANs Web Authentication RADIUS Support Web-based Authentication Web UI Manual Management Advanced Multicast and and Traffic Routing Configuration Management X X Access Security Guide X X xiii - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 15
1 Getting Started Contents Introduction 1-2 Conventions 1-2 Command Syntax Statements 1-2 Command Prompts 1-2 Screen Simulations 1-3 Configuration and Operation Examples 1-3 Keys 1-3 Sources for More Information 1-4 Getting Documentation From the Web 1-6 Online Help 1-6 Menu Interface 1-6 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 16
1 Getting Started Contents Introduction 1-2 Conventions 1-2 Command Syntax Statements 1-2 Command Prompts 1-2 Screen Simulations 1-3 Configuration and Operation Examples 1-3 Keys 1-3 Sources for More Information 1-4 Getting Documentation From the Web 1-6 Online Help 1-6 Menu Interface 1-6 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 17
browser to configure, manage, monitor, and troubleshoot switch operation. For an overview of product documentation for the above switches, refer to "Product Documentation" on page xiii. You can download documentation from the following web sites: www.procurve.com/manuals www.hp.com/go/bladesystem - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 18
Command Prompts In the default configuration, your switch displays a CLI prompt similar to the following examples: ProCurve 6120G/XG Blade Switch# ProCurve 6120XG Blade Switch# To simplify recognition, this guide uses ProCurve to represent command prompts. For example: ProCurve# (You can use - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 19
manuals www.hp.com/go/bladesystem/documentation h18004.www1.hp.com/products/blades/components/c-class-tech-installing.html ■ Software Release Notes-Release Notes provide information on new software updates: • new features and how to configure and use them • software management, including downloading - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 20
operation with MAC-based control • Authorized IP Manager security ■ IPv6 Configuration Guide-Use this guide for information on topics such as: • Overview of IPv6 operation and features supported • Configuring IPv6 addressing • Using IPv6 management, security, and troubleshooting features 1-5 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 21
To obtain the latest versions of documentation and release notes for your switch, go to any of the following web sites: www.procurve.com/manuals www.hp.com/go/bladesystem/documentation h18004.www1.hp.com/products/blades/components/c-class-tech-installing.html Online Help Menu Interface If you need - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 22
to quickly configure IP addressing. To do so, do one of the following: ■ Enter setup at the CLI Manager level prompt. Procurve# setup ■ In the Main Menu of the Menu interface, select 8. Run Setup For more on using the Switch Setup screen, see the Installation and Getting Started Guide you received - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 23
■ Instructions for physically installing the switch in your network ■ Quickly assigning an IP address and subnet mask, set a Manager password, and (optionally) configure other basic features. ■ Interpreting LED behavior. For the latest version of the Installation and Getting Started Guide for - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 24
2-17 Single Forwarding Database Operation 2-17 Example of an Unsupported Configuration and How To Correct It 2-19 Multiple Forwarding Database Operation 2-20 Configuring VLANs 2-21 Menu: Configuring Port-Based VLAN Parameters 2-21 To Change VLAN Support Settings 2-22 Adding or Editing VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 25
Types 2-45 VLAN Support and the Default VLAN 2-45 The Primary VLAN 2-45 The Secure Management VLAN 2-46 Preparation 2-48 Configuration 2-49 2-49 2-55 Voice VLAN Access Security 2-55 Effect of VLANs on Other Switch Features 2-55 Spanning Tree Operation with VLANs 2-55 IP Interfaces 2-56 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 26
, port-based and protocol-based VLANs on the switches covered in this guide. For general information on how to use the switch's built-in interfaces, refer to these chapters in the Management and Configuration Guide for your switch: ■ Chapter 3, "Using the Menu Interface" ■ Chapter 4, "Using the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 27
by allowing you to group high-bandwidth users on low-traffic segments and to organize users from different LAN segments according to their configured with a name, VLAN ID number (VID), and port members. (For dynamic VLANs, refer to chapter 3, "GVRP" .) By default, the switches covered in this guide - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 28
configuration, the Default VLAN is also the Primary VLAN. However, you can designate another, port-based, non-default VLAN, as the Primary VLAN (page 2-45). ■ The Secure Management VLAN: This optional, port-based VLAN establishes an isolated network for managing the ProCurve switches that support - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 29
. Static VLAN: A port-based or protocol-based VLAN configured in switch memory. (See also Dynamic VLAN.) Tagged Packet: A packet that carries an IEEE 802.1Q VLAN ID (VID), which is a two-byte extension that precedes the source MAC address field of an ethernet frame. A VLAN tag is layer 2 data and is - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 30
number of IP addresses supported on "How IP Addressing Affects Switch Operation" in a switch is 256. Each IP address that you configure the chapter "Configuring IP Addressing" in the on a VLAN interface must be unique in the switch. Management and Configuration Guide for the switch.) For more - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 31
is a port-based VLAN, for IPv4 traffic. Multiple VLAN Environment In addition to the default VLAN, the configuration can include one or more other port-based VLANs and one or more protocol VLANs. (The switches covered in this guide allow up to 256 (vids up to 4094) VLANs of all types.) Using VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 32
belong to the default VLAN, and devices connected to these ports are in the same broadcast domain. Except for an IP address and subnet, no configuration steps are needed. A8 A1 A7 A2 VLAN 1 A6 A3 A5 A4 Figure 2-1. Example of a Switch in the Default VLAN Configuration Multiple Port-Based - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 33
the particular VLAN I.D. (VID) of the VLAN on which the packet was generated. ProCurve Switch 802.1Q-Compliant Server Figure 2-3. Example of Overlapping VLANs Using the Same Server Similarly, using 802.1Q-compliant switches, you can connect multiple VLANs through a single switch-to-switch link. 2-10 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 34
separate ports (configured as untagged) must be used to connect separate VLANs to non-802.1Q devices. The legacy (non-802.1Q compliant) switch requires a .1Q Switch Blue VLAN Red VLAN Blue VLAN ProCurve Switch Red VLAN Blue VLAN ProCurve Switch Blue VLAN Red VLAN Figure 2-5. Example of - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 35
the port to join multiple VLANs. Allows VLAN connection to a device that is configured for an untagged VLAN instead of a tagged VLAN protocol-based VLAN for any given protocol type. For example, if the switch is configured with the default VLAN plus three protocol-based VLANs that include IPX, - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 36
Bootp: If you are using DHCP/Bootp to acquire the switch's configuration, packet time-to-live, and TimeP information, you must designate the VLAN on which DHCP is configured for this purpose as the Primary VLAN. (In the factory-default configuration, the DEFAULT_VLAN is the Primary VLAN.) ■ Per-VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 37
VLAN. (The ports are moved to the default VLAN.) ■ Adding or Deleting VLANs: Changing the number of VLANs supported on the switch requires a reboot. (From the CLI, you must perform a write memory command before rebooting.) Other VLAN configuration changes are dynamic. ■ Inbound Tagged Packets: If - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 38
VLAN Operation ■ Tagged Packet Forwarding: If a port is a tagged member of the same VLAN as an inbound, tagged packet received on that port, then the switch forwards the packet to an outbound port on that VLAN. (To enable the forwarding of tagged packets, any VLAN to which the port belongs as - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 39
using dynamic VLANs, include the port configuration planning necessary to support this feature. (Refer to chapter 3, "GVRP" .) By default, VLAN support is enabled for up to 256 VLANs. 2. Configure at least one VLAN in addition to the default VLAN. 3. Assign the desired switch ports to the new VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 40
. Thus, connecting a multiple forwarding database switch to a single forwarding database switch where multiple VLANs exist imposes some cabling and port VLAN assignment restrictions. Table 2-4 illustrates the functional difference between the two database types. Table 2-4. Example of Forwarding - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 41
is not a problem for a switch with a multiple forwarding database because the switch allows multiple instances of a given MAC address; one for each valid destination. However, a switch with a single forwarding database allows only one instance of a given MAC address. If (1) you connect the two types - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 42
VLAN 2 B1 C1 VLAN 1 D1 VLAN 2 6120 Switch (Same MAC address for all VLANs.) PC "B" This switch has a single forwarding database. This switch has multiple forwarding databases. Figure 2-9. Example of Invalid Configuration for Single-Forwarding to MultipleForwarding Database Devices in a Multiple - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 43
devices, you can use a trunk of multiple physical links rather than a single physical link. Multiple Forwarding Database Operation If you want to connect one of the switches covered by this guide to another switch that has a multiple forwarding database, you can use either or both of the following - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 44
protocol-based VLANs (page 2-27). In the factory default state, support is enabled for up to 256 VLANs. (You can reconfigure the switch to support up to 256 (vids up to 4094) VLANs.) Also, in the default configuration, all ports on the switch belong to the default VLAN and are in the same broadcast - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 45
disabling dynamic VLANs (Refer to chapter 3, "GVRP" .) 1. From the Main Menu select: 2. Switch Configuration 8. VLAN Menu ... 1. VLAN Support You will then see the following screen: Note 2-22 Figure 2-12. The Default VLAN Support Screen 2. Press [E] (for Edit), then do one or more of the following - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 46
did not change the VLAN Support option, a reboot is not necessary. 4. Press [0] to return to the Main Menu. Adding or Editing VLAN Names Use this procedure to add a new VLAN or to edit the name of an existing VLAN. 1. From the Main Menu select: 2. Switch Configuration 8. VLAN Menu .... 2. VLAN Names - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 47
This can be any number from 2 to 4094 that is not already being used by another VLAN. (The switch reserves "1" for the default VLAN.) Remember that a VLAN must have the same VID in every switch in which you configure that same VLAN. (GVRP dynamically extends VLANs with correct VID numbering to other - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 48
Example of VLAN Names Screen with a New VLAN Added 6. Repeat steps 2 through 5 to add more VLANs. Remember that you can add VLANs until you reach the number specified in the Maximum VLANs to support field on the VLAN Support the default VLAN.) 1. From the Main Menu select: 2. Switch Configuration 8. - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 49
, or Forbid). Note For GVRP Operation: If you enable GVRP on the switch, "No" converts to "Auto", which allows the VLAN to dynamically join assigned to each port. In the factory default configuration, all ports are assigned to the default VLAN (DEFAULT_VLAN). For example, if you want ports A4 and - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 50
then returns to the VLAN menu.) 3. Return to the Main menu. CLI: Configuring Port-Based and Protocol-Based VLAN Parameters In the factory default state, all ports on the switch belong to the (port-based) default VLAN (DEFAULT_VLAN; VID = 1) and are in the same broadcast/ multicast domain. (The - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 51
ports has dynamically joined an advertised VLAN. (In the default configuration, GVRP is disabled. (Refer to chapter 3, "GVRP" .) Syntax: show vlans Maximum VLANs to support: Shows the number of VLANs the switch can currently support. (Default: 256 Maximum: 256) Primary VLAN: Refer to "The Primary - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 52
"Voice VLANs" on page 2-54. Jumbo: Indicates whether a VLAN is configured for Jumbo packets. For more on jumbos, refer to the chapter titled "Port Traffic Controls" in the Management and Configuration Guide for your switch. For example: When GVRP is disabled (the default), Dynamic VLANs do not exist - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 53
: Indicates whether a VLAN is configured for Jumbo packets. For more on jumbos, refer to the chapter titled "Port Traffic Controls" in the Management and Configuration Guide for your switch. Mode: Indicates whether a VLAN is tagged or untagged. Figure 2-19 is an example of the output when the detail - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 54
Virtual LANs (VLANs) Configuring VLANs Figure 2-20 is an example of the output when the detail option is used. ProCurve# show vlan ports a1-a4 detail Status and Counters - VLAN Information - for ports A1 Port name: Voice_Port VLAN ID Name | Status Voice Jumbo Mode 1 DEFAULT_VLAN | Port - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 55
page 2-54. Jumbo: Indicates whether a VLAN is configured for Jumbo packets. For more on jumbos, refer to the chapter titled "Port Traffic Controls" in the Management and Configuration Guide for your switch. Port Information: Lists the ports configured as members of the VLAN. DEFAULT: Shows whether - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 56
switch has dynamically joined the designated VLAN. Figure 2-22. Example of "Show VLAN" for a Specific Dynamic VLAN Changing the Number of VLANs Allowed on the Switch. In the default VLAN configuration, the switch the switch. Note: If multiple VLANs exist on the switch, you cannot reset the maximum - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 57
) Configuring VLANs For example, to reconfigure the switch to allow 10 VLANs: Note that you can execute these three steps at another time. Figure 2-23. Example of Command Sequence for Changing the Number of VLANs Changing the Primary VLAN. In the default VLAN configuration, the portbased default - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 58
created VLAN context. If you do not specify an optional name, the switch assigns a name in the default format: VLANn where n is the < vid > assigned to the not deliverable. A "Caution" message appears in the CLI if you configure IPv4 in protocol VLAN that does not already include the arp protocol - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 59
is empty, a Secure Management VLAN is not configured in the switch. Refer to "The Secure Management VLAN" on page 2-46 Figure 2-25. Example of Creating a New, Port-Based, Static VLAN To go to a different VLAN context level, such as to the default VLAN: ProCurve(vlan-100)# vlan default_vlan ProCurve - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 60
and dynamic VLAN operation, refer to chapter 3, "GVRP" .) For example, suppose a dynamic VLAN with a VID of 125 exists on the switch. The following command converts the VLAN to a port-based, static VLAN. ProCurve(config)# static-vlan 125 Configuring Static VLAN Per-Port Settings. The vlan - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 61
specified VLAN to Auto operation. Note that Auto is the default per-port setting for a static VLAN if GVRP is running on the switch. (For information on dynamic VLAN and GVRP operation, refer to chapter 3, "GVRP", in this guide.) For example, suppose you have a VLAN named VLAN100 with a VID of 100 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 62
will need to use either the CLI or the menu interface (available by Telnet from the web browser interface). 1. Click on the Configuration tab. 2. Click on [Vlan Configuration]. 3. Click on [Add/Remove VLANs]. For web-based Help on how to use the web browser interface screen, click on the [?] button - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 63
be an untagged member of that VLAN. This is the case where the port is connected to a non 802.1Q-compliant device or is assigned to only one VLAN. For example, if port 7 on an 802.1Q-compliant switch is assigned to only the Red VLAN, the assignment can remain "untagged" because the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 64
connected to these ports do not have to be 802.1Q-compliant. • Because both the Red VLAN and the Green VLAN are assigned to port Y5, at least one of the VLANs must be tagged for this port. ■ In both switches: The ports on the link between the two switches must be configured the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 65
which it is configured. That is, if the Red VLAN has a VID of 10 in switch X, then 10 must also be used for the Red VID in switch Y. VID Numbers Figure 2-27. Example of VLAN in which the VLAN occurs. Also, the ports connecting two 802.1Q devices should have identical VLAN configurations. 2-42 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 66
■ If all end nodes on a port comply with the 802.1Q standard and are configured to use the correct VID, then, you can configure all VLAN assignments and figure 2-7 • "Tagged Packet Forwarding" and figure 2-8 Example. In the following network, switches X and Y and servers S1, S2, and the AppleTalk - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 67
link, their VLAN configurations must match. Switch X Switch Y Port AT-1 configurations on ports connected by the same link must match. Because ports X2 and Y5 are opposite ends of the same point-to-point connection, both ports must have the same VLAN configuration; that is, both ports configure - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 68
) Special VLAN Types Special VLAN Types VLAN Support and the Default VLAN In the factory default configuration, VLAN support is enabled and all ports on the switch belong to the port-based, default VLAN (named DEFAULT_VLAN). This places all ports in the switch into one physical broadcast domain. In - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 69
VLAN, use the CLI show vlan command. Note If you configure a non-default VLAN as the Primary VLAN, you cannot delete that VLAN unless you first select a different VLAN to serve as primary. If you manually configure a gateway on the switch, it ignores any gateway address received via DHCP or Bootp - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 70
VLAN Links to Other Devices Figure 2-29. Example of Potential Security Breaches In figure 2-30, Workstation 1 has management access to all three switches through the Management VLAN, while the PCs do not. This is because configuring a switch to recognize a Management VLAN automatically excludes - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 71
page 2-48.). Hubs dedicated to connecting management stations to the Management VLAN can also be included in the above topology. Note that any device connected to a hub in the Management VLAN will also have Management VLAN access. 3. Configure the Management VLAN on the selected switch ports. 2-48 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 72
. Default: Disabled. In this case, the VLAN returns to standard VLAN operation. For example, suppose you have already configured a VLAN named My_VLAN with a VID of 100. Now you want to configure the switch to do the following: ■ Use My_VLAN as a Management VLAN (tagged, in this case) to connect port - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 73
to obtain an IPv4 address for your Management VLAN or a client on that VLAN. The following examples illustrate when an IP address will be received from the DHCP server. 1. If Blue_VLAN is configured as the Management VLAN and the DHCP server is also on Blue_VLAN, Blue_VLAN receives an IP address - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 74
VLAN - does not receive IP address Blue_VLAN receives IP address Red_VLAN Blue_VLAN Figure 2-33. Example of DHCP Server on Different VLAN from the Management VLAN 3. If no Management VLAN is configured, both Blue_VLAN and Red_VLAN receive IP addresses. See figure 2-34. DHCP Server No Management - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 75
DHCP server is on Blue_VLAN. The client does not receive an IP address. Red_VLAN Blue_VLAN Client Figure 2-35. Example of Client on Different Management VLAN from DHCP Server 5. If Blue_VLAN is configured as the Management VLAN, the client is on Blue_VLAN, and the DHCP server is on Blue_VLAN, the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 76
VLAN itself. For example, either of the following commands disables the Secure Management feature in the above example: ProCurve (config)# switch. ■ During a Telnet session to the switch, if you configure the ManagementVLAN to a VID that excludes the port through which you are connected to the switch - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 77
and Configuration Guide for your switch. VLAN support voice VLAN operation. ■ Configure all ports in a voice VLAN as tagged members of the VLAN. This ensures retention of the QoS (Quality of Service) priority included in voice VLAN traffic moving through your network. ■ If a telephone connected - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 78
a voice VLAN. That is, you can allow or deny access to a phone having a particular MAC address. Refer to chapter titled "Configuring and Monitoring Port Security" in the Access Security Guide for your switch. MAC authentication is not recommended in voice VLAN applications. Effect of VLANs on Other - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 79
switches covered by this guide have one unique MAC address for all of their VLAN interfaces. You can send an 802.2 test packet to this MAC address to verify connectivity to the switch the switch for network monitoring, this port will appear in the Port VLAN Assignment screen and can be configured as - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 80
) VLAN Restrictions monitor port is assigned, refer to the section titled "VLAN-Related Problems" in the "Troubleshooting" appendix of the Management and Configuration Guide for your switch. Jumbo Packet Support Jumbo packet support is enabled per-VLAN and applies to all ports belonging to the VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 81
11 Advertisements and Dynamic Joins 3-11 Port-Leave From a Dynamic VLAN 3-11 Planning for GVRP Operation 3-12 Configuring GVRP On a Switch 3-13 Menu: Viewing and Configuring GVRP 3-13 CLI: Viewing and Configuring GVRP 3-14 Web: Viewing and Configuring GVRP 3-18 GVRP Operating Notes 3-18 3-1 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 82
in chapter 2, "Static Virtual LANs (VLANs)" . For general information on how to use the switch's built-in interfaces, refer to these chapters in the Management and Configuration Guide for your switch: ■ Chapter 3, "Using the Menu Interface" ■ Chapter 4, "Using the Command Line Interface (CLI - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 83
Default Menu view GVRP configuration n/a page 3-13 list static and dynamic VLANs n/a - on a GVRP-enabled switch manual, a GVRP BPDU is termed an advertisement. Advertisements are sent outbound from ports on a switch to the devices directly connected to those ports. GVRP enables the switch - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 84
continue as a dynamic VLAN for as long as needed. You can also use GVRP to dynamically enable port membership in static VLANs configured on a switch. On the switches covered in this guide, GVRP can be enabled only if max vlans is set to no more than 256 VLANs. General Operation When GVRP is enabled - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 85
at member of VIDs 1, 2, & 3 at Port 6 is statically configured this point. this point. to be a member of VID 3. Switch 1 GVRP On 2 Switch 2 GVRP On 1 3 Switch 3 GVRP On 4 5 Static VLAN configured End Device (NIC or switch) with GVRP On 6 11. Port 2 receives 9. Port 3 receives advertise - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 86
advertised VID on the receiving port, then dynamically create the VLAN and become a member. ■ If the switch already has a static VLAN assignment with the same VID as in the advertisement, and the port is configured to Auto for that VLAN, then the port will dynamically join the VLAN and begin moving - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 87
created manually. In the static state you can configure IP addressing on example, suppose that in figure 3-2 (page 3-6), port 1 on switch "A" is connected to port 5 on switch "C". Because switch "A" has VLAN 22 statically configured, while switch "C" does not have this VLAN statically configured - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 88
Support screen show a switch's current GVRP configuration, including the Unknown VLAN settings. ProCurve (config)# show gvrp GVRP support Maximum VLANs to support (Required for Unknown VLAN operation.) Unknown VLAN Settings Default: Learn Figure 3-3. Example of GVRP Unknown VLAN Settings 3-8 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 89
dynamic joins, GVRP must be enabled and a port must be configured to Learn (the default). However, to send advertisements in your network, one or more static (Tagged, Untagged, or Auto) VLANs must be configured on one or more switches (with GVRP enabled), depending on your topology. Enabling a Port - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 90
VLAN)2 Auto2 (Per VLAN) Port Activity: Forbid (Per VLAN)2 Learn (the Default) The port: The port: The port: • Belongs to specified VLAN. • configured on the switch and also for dynamic VLANs the switch learns on other ports. 2 To configure tagging, Auto, or Forbid, see "Configuring Static - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 91
configured on a perport basis using the CLI. The Tagged, Untagged, Auto, and Forbid options are configured switch, the default GVRP parameter settings allow all of the switch continues to receive advertisements of that VLAN from another device connected to that port or until you: ■ Convert the VLAN - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 92
. 3. Determine the device or devices on which you must manually create static VLANs in order to propagate VLANs throughout the segment dynamic VLANs and configure the appropriate "Unknown VLAN" parameter (Learn, Block, or Disable) for each port. 6. Configure the static VLANs on the switch(es) where - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 93
operation, refer to "Per-Port Static VLAN Configuration Options" on page 2-12. Menu: Viewing and Configuring GVRP 1. From the Main Menu, select: 2. Switch Configuration ... 8. VLAN Menu ... 1. VLAN Support Figure 3-4. The VLAN Support Screen (Default Configuration) 2. Do the following to enable GVRP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 94
Switch Configuration - VLAN - VLAN Support configure each port to: - Learn - Dynamically join any advertised VLAN and advertise all Maximum VLANs to support selection and to execute action. Figure 3-5. Example Showing Default Settings for Handling Advertisements 3. Use the arrow keys to - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 95
GVRP Configuring GVRP On a Switch ProCurve (config)# show gvrp GVRP support Maximum VLANs to support [8] : 8 Primary VLAN : DEFAULT_VLAN GVRP Enabled [No] : No Figure 3-6. Example of "Show GVRP" Listing with GVRP Disabled ProCurve (config)# show gvrp GVRP support Maximum VLANs to support [8] : 8 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 96
: show vlans The show vlans command lists all VLANs present in the switch. For example, in the following illustration, switch "B" has one static VLAN (the default VLAN), with GVRP enabled and port 1 configured to Learn for Unknown VLANs. Switch "A" has GVRP enabled and has three static VLANs: the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 97
200 GVRP_200 | Dynamic 300 GVRP_300 | Dynamic 400 GVRP_400 | Dynamic 500 GVRP_500 | Dynamic 600 GVRP_600 | Dynamic Dynamic VLANs Learned from Switch "A" through Port 1 Figure 3-9. Example of Listing Showing Dynamic VLANs Converting a Dynamic VLAN to a Static VLAN. If a port on the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 98
. For example, in the factory default state, the switch supports up to 256 VLANs. Any additional VLANs advertised to the switch will not be added unless you first increase the Maximum VLANs setting. In the Menu interface, click on 2. Switch Configuration ... | 8. VLAN Menu | 1. VLAN Support. In - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 99
has learned. ■ A GVRP-enabled switch does not advertise any GVRP-learned VLANs out of the port(s) on which it originally learned of those VLANs. ■ A VLAN enabled for jumbo traffic cannot be used to create a dynamic VLAN. A port belonging to a statically configured, jumbo-enabled VLAN cannot join - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 100
MSTP Operates 4-9 MST Regions 4-9 Regions, Legacy STP and RSTP Switches, and the Common Spanning Tree (CST 4-11 MSTP Operation with 802.1Q VLANs 4-12 Terminology 4-13 Operating Rules 4-15 MSTP Compatibility with RSTP or STP 4-16 Configuring MSTP 4-17 Planning an MSTP Application 4-17 MSTP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 101
Status 4-50 Displaying Detailed Port Information 4-52 Displaying Status for a Specific MST Instance 4-53 Displaying the MSTP Configuration 4-54 Troubleshooting an MSTP Configuration 4-58 Displaying the Change History of Root Bridges 4-58 Displaying Debug Counters for All MST Instances 4-61 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 102
this guide, use the IEEE 802.1s Multiple Spanning Tree Protocol (MSTP) standard. MSTP Features 802.1s Spanning Tree Protocol Default Setting Viewing MSTP Status and Configuration n/a Configuring MSTP Operation Mode and Disabled Global Parameters Configuring Basic Port Connectivity Parameters - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 103
redundant links in one instance while allowing forwarding over the same links for non-redundant use by another instance. For example, suppose you have three switches in a region configured with VLANs grouped into two instances, as follows: VLANs 10, 11, 12 20, 21, 22 Instance 1 Yes No Instance - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 104
20, 21, 22 Path blocked for VLANs in instance 1. Region "A": Physical Topology Path blocked for VLANs in instance 2. Switch "A" Root for Instance 1 Switch "B" Root for Instance 2 Switch "C" Path blocked for VLANs in instance 1. Figure 4-1. Example of a Multiple Spanning-Tree Application 4-5 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 105
instances. This requires the configuration of a number of MSTP-capable switches. However, it is NOT necessary to do this. You can just enable MSTP on an MSTP-capable switch and a spanning tree instance is created automatically. This instance always exists by default when spanning tree is enabled - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 106
a packet crossing a mesh may traverse several links within the mesh, using smallerthan-default settings for the MSTP Hello Time and Forward Delay timers can cause unnecessary topology changes and end-node connectivity problems. For MSTP information beyond what is provided in this manual, refer to - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 107
MST region comprises the VLANs configured on physically connected MSTP switches. All switches in a given region must be configured with the same VLANs, the associated with an MSTI are, by default, associated with the IST instance. Note that the switch automatically places dynamic VLANs (resulting - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 108
strong understanding of the IEEE 802.1D/w/s standards and operation. How MSTP Operates In the factory default configuration, spanning tree operation is on. Also, the switch retains its currently configured spanning tree parameter settings when disabled. Thus, if you disable spanning tree, then later - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 109
MSTI "A": 4, 5 • MSTI "B": 7, 9 Blocks redundant link for IST instance. Switch 3 MSTI "B" Root VLAN Memberships: • IST Instance: VLANs 1, 2 • MSTI "A": . This depends on the VLAN memberships to which the port is assigned. For example, if a port belongs to VLAN 1 in the IST instance of a region - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 110
should belong to all VLANs configured in the region. Otherwise, traffic from some areas different switch that is not necessarily connected to another region.) ■ The MSTP switches block a link crosses a boundary between regions (or between a region and a legacy STP or RSTP switch), traffic is - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 111
and 802.1Q (tagged) VLANs enable the use of one (trunked) link for both VLANs. Figure 4-4. Example of Using a Trunked Link To Support Multiple VLAN Connectivity within the Same MST Instance All switches in a region should be configured with the VLANs used in that region, and all ports linking MSTP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 112
in a network topology. The loops are then removed by placing redundant switch ports in a backup, or blocked, state. BPDU Filtering - Spanning-tree configuration mode that prevents the switch from receiving and transmitting BPDU frames on a specific port (see page 4-30 for details). BPDU Protection - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 113
on which that BPDU was received is on the boundary of the region in which the switch resides. MSTP Bridge: In this manual, an MSTP bridge is a switch (or another 802.1scompatible device) configured for MSTP operation. MST Region: An MST region forms a multiple spanning tree domain and is a component - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 114
switch per configured MST instance. ■ Because boundary ports provide the VLAN connectivity between regions, all boundary ports on a region's root switch should be configured an STP or RSTP switch. MSTP blocks any other physical paths as long as the currently active path remains in service. ■ Within a - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 115
, you may need to adjust the default configuration values. Here are two such examples: ■ The rapid state transitions employed by MSTP may result in an increase in the rates of frame duplication and misordering in the switched LAN. To allow the switch to support applications and protocols that may be - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 116
VLAN configuration in your network supports all of the forwarding paths necessary for the desired connectivity. All ports connecting one switch to another within a region and one switch to another between regions should be configured as members of all VLANs configured in the region. ■ Configure all - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 117
ports connected to another switch, a bridge, or a hub. Note on MSTP Rapid State Tr a n s i t i o n s Under some circumstances the rapid state transitions employed by MSTP can increase the rates of frame duplication and misordering in the switched LAN. To allow MSTP switches to support applications - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 118
the priority value used along with the switch MAC address to determine which device is root. The lower a priority value, the higher the priority. spanning-tree priority 2. Configure per port parameters. ProCurve recommends that you use the default settings for these parameters and apply changes - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 119
at the default (auto) allows the switch to calculate the path-cost from the link speed. 6. Enable spanning-tree operation on the switch. spanning-tree For an example of a complete MSTP network configuration: • Go to the ProCurve Web site at www.procurve.com/support. • Click on Configuration examples - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 120
command resets the configuration name of the MST region in which the switch switch in the same MST region, you must configure the identical region name on all such switches. If you retain the default configuration name on a switch, it cannot exist in the same MST region with another switch. (Default - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 121
physical region. Note that this setting must be the same for all MSTP switches in the same MST region. (Range: 0 - 65535; Default: 0) Note: This option is available only when the switch is configured for MSTP operation. Syntax: spanning-tree force-version < stp-compatible | rstp-operation | mstp - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 122
of BPDUs for all ports on the switch configured with the Global option. (the default). This parameter applies in MSTP, RSTP and (Default: 2.) Syntax: spanning-tree max-hops < hop-count > This command resets the number of hops allowed for BPDUs in an MST region. When an MSTP switch receives - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 123
pending configurations). config-name: Sets the pending MST region configuration name (default is switch's MAC address). config-revision: Sets the pending MST region configuration revision number (default is 0). instance: Change pending MST instance configuration. reset: Copy active configuration to - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 124
value of 0 - 15, the actual priority assigned to the switch is: (priority-multiplier) x 4096 For example, if you configure "2" as the priority-multiplier on a given MSTP switch, then the Switch Priority setting is 8,192. Note: If multiple switches in the same MST region have the same priority - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 125
Page below 4-27 4-30 4-32 4-27 4-27 4-36 4-25 4-25 4-29 4-30 Configuring Per Port Parameters Syntax: [no] spanning-tree admin-edge-port Enable admin-edge-port on ports connected to end nodes. During spanning tree establishment, ports with adminedge-port enabled transition immediately to - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 126
-Tree Operation Configuring MSTP Syntax: [no] spanning-tree < port-list > auto-edge-port Supports the automatic identification port hellotime setting overrides the hello-time setting configured on switch "X"). (Default Per-Port setting: Use Global. Default Global Hello-Time: 2.) Syntax: spanning-tree - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 127
of the type of device to which a specific port connects. true (default): Indicates a point-to-point link to a device such as a switch, bridge, or end-node. false: Indicates a connection to a hub (which is a shared LAN segment). auto: Causes the switch to set Force-False on the port if it is not - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 128
assigned to the switch is: (priority-multiplier) x 16 For example, if you configure "2" as the priority Use this command on MSTP switch ports that are connected to devices located in other configuration of the CIST root bridge that serves as the common root for the entire network. Default: Disabled. - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 129
to other ports. (Default: No - disabled) Configuring BPDU Filtering The STP switch at a time. ■ To prevent the spread of errant BPDU frames. ■ To eliminate the need for a topology change when a port's link status changes. For example, ports that connect to servers and workstations can be configured - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 130
Show Configuration Command Configuring BPDU Protection BPDU protection is a security feature designed to protect the active STP topology by preventing spoofed BPDU packets from entering the STP domain. In a typical implementation, BPDU protection would be applied to edge ports connected to end user - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 131
End User Switch SNMP Trap Event Log: port X is disable by STP Fake STP BPDU Figure 4-7. Example of BPDU Protection Enabled at the Network Edge The following commands allow you to configure -protection are not, by default, re-enabled automatically). (Range: 0-65535 seconds; Default: 0) Syntax: [no] - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 132
Note Multiple Instance Spanning-Tree Operation Configuring MSTP Example. To configure BPDU protection on ports 1 to 10 with SNMP re-enabled manually by a network administrator using the interface enable command. To re-enable the bpdu-protected ports automatically, configure a timeout - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 133
file. ProCurve(config)# show configuration . . . spanning-tree Rows showing ports with BPDU protection enabled spanning-tree A1 bpdu-protection spanning-tree C7 bpdu-protection spanning-tree Trk2 priority 4 . . . Figure 4-9. Example of BPDU Filters in the Show Configuration Command 4-34 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 134
Multiple Instance Spanning-Tree Operation Configuring MSTP Configuring MST Instance Parameters When you enable MSTP on the switch, a spanning tree instance is enabled automatically. The switch supports up to sixteen configurable MST instances for each VLAN group that you want to operate as an - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 135
switch. When you upgrade switch software to release 13.x.x and later, the existing MSTP topology configuration switch for the specified MST instance is: (priority-multiplier) x 4096 For example, if you configure "5" as the priority-multiplier for MST Instance 1 on a given MSTP switch, then the Switch - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 136
Multiple Instance Spanning-Tree Operation Configuring MSTP Configuring MST Instance Per-Port Parameters MST instances to which the port may belong.) The switch uses the path cost to determine which ports are the setting, the switch calculates the path cost from the link speed: 10 Mbps - - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 137
- 15 ) of 16. That is, when you specify a priority multiplier of 0 - 15, the actual priority assigned to the switch is: (priority-multiplier) x 16 For example, if you configure "2" as the priority multiplier on a given port in an MST instance, then the actual Priority setting is 32. Thus, after you - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 138
The IST root port (or trunk) in a region provides the path to connected regions for the traffic in VLANs assigned to the region's IST instance. 0 - 15, the actual priority assigned to the switch is: (priority-multiplier) x 16 For example, configuring "5" as the priority multiplier on a given port - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 139
for testing or troubleshooting purposes. When you configure or reconfigure MSTP, the switch re-calculates the corresponding network paths. This can have a ripple effect throughout your network as adjacent MSTP switches recalculate network paths to support the configuration changes invoked in - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 140
be the same for all MSTP switches in the region. (Default: 0). instance < 1..16 > vlan < vid | vid-range >: Creates the pending instance and assigns one or more VLANs to the instance. reset: Copies the switch's currently active MSTP configuration to the pending configuration. This is useful when you - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 141
reload the older version. See "How to Save Your Current Configuration" on page 4-47. The default behavior of the spanning-tree instance vlan command changes so that, before a static VLAN is configured or a dynamic VLAN is learned on the switch, you can preconfigure its VLAN ID-to-MSTI mapping. Later - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 142
in an MST region, you can combine switches that support different maximum numbers of VLANs. ■ Network stability: You can reduce the interruptions in network connectivity caused by the regeneration of spanning trees in the entire network each time a configuration change in VLAN-to-MSTI mapping is - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 143
VLAN Range Option For the switches covered in this guide, if you use the spanning-tree instance command with the VLAN range option, even if the range includes VLANs that are not currently present on the switch, the entire range of VLANs is configured. For example, if VLANs 1, 5, and 7 are currently - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 144
with the VLAN range option. All the VLANs are included in the instance whether they exist or not. Figure 4-11 shows an example of an MSTP instance configured on another ProCurve switch. Only VLANs 1, 5, and 7 are included in the instance. ProCurve(config)# show spanning-tree mst-config MST - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 145
MSTI configured in the region. ■ If you enter the spanning-tree instance vlan command before a static or dynamic VLAN is configured on the switch to new default behavior differs from automatically including configured (static and dynamic) VLANs in the IST instance and requiring you to manually - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 146
(config)# show config files Configuration files: id | act pri sec | name 1 | * * * | config1 2 | | config2 3 | | configK1243.cfg Figure 4-13. A Config File for the Current Software Version is Created 4. Now update your switch to the desired version, for example, Z.12.51. Enter the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 147
Default Boot : Primary Build # ------- 304 123 Figure 4-14. Show Flash Command after Upgrading the Switch example, enter this command: ProCurve(config)# boot system flash secondary config configK1243.cfg After rebooting, the switch is running software version Z.12.43 and is using the configuration - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 148
list >] detail show spanning-tree instance < ist | 1..16 > MSTP Configuration show spanning-tree [ port-list ] config show spanning-tree [ port-list | mst-config > Page below 4-52 4-53 4-54 4-55 4-56 4-57 SNMP MIB Support for MSTP. MSTP is a superset of the STP/802.1D and RSTP/802.1w protocols and - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 149
Configuration Displaying Global MSTP Status The following commands display the MSTP statistics for the connections between MST regions in a network. Syntax: show spanning-tree This command displays the switch series of ports and trunks. For example, to display data for port A20-A24 and trk1, you - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 150
the port is configured for connecting to a LAN segment that includes a bridge or switch. Yes indicates the port is configured for a host (end node) link. Refer to the admin-edge-port description under "Configuring MSTP Per-Port Parameters" on page 4- Figure 4-15. Example of Common Spanning - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 151
Configuration Displaying Detailed Port Information The following commands display the MSTP statistics for the connections BPDUs Rx BPDUs Tx BPDUs Rx 8 28 0 0 0 0 Figure 4-16. Example of CST Port Information using Show Spanning Tree Detail Command Note This command gives information - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 152
Operation Displaying MSTP Statistics and Configuration Displaying Status for a Specific either the IST instance or a numbered MST instance running on the switch. Syntax: show spanning-tree instance < ist | 1..16 > detail . Figure 4-17. Example of MSTP Statistics for a Specific Instance on an MSTP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 153
Configuration Displaying the MSTP Configuration Displaying the Global MSTP Configuration. This command displays the switch's basic and MST region spanning-tree configuration, including basic port connectivity any consecutive series of ports and trunks. For example, to display data for port A20-A24 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 154
and Configuration Displaying Per-Instance MSTP Configurations. These commands displays the per-instance port configuration and first and last port or trunk of any consecutive series of ports and trunks. For example, to display data for port A20-A24 and trk1, use this command: show spanning - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 155
must be identical for all MSTP switches intended to belong to the same region. When comparing two MSTP switches, if their Digest identifiers do not match, then they cannot be members of the same region. Refer to the "Note", above. Figure 4-20. Example of a Region-Level Configuration Display 4-56 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 156
Operation Displaying MSTP Statistics and Configuration Displaying the Pending MSTP Configuration. This command displays the MSTP configuration the switch will implement if you execute , and assigned VLAN information for the pending MSTP configuration. Figure 4-21. Example of Displaying a Pending - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 157
configuration in your network. Note that the show spanning-tree commands described in this section allow you to troubleshoot MSTP activity in your network by focusing on increasingly specific levels of operation. For example VLANs on MSTP switches in a region ■ All VLANs on MSTP switches in an MST - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 158
connected to the device from being selected as the root port in a topology, use the spanning-tree root-guard command. The following examples show MSTP switch priority calculated for one of the following: • The IST (regional) root switch using the spanning-tree priority command • An MSTI root switch - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 159
Multiple Instance Spanning-Tree Operation Troubleshooting an MSTP Configuration ProCurve(config)# show spanning-tree root-history spanning tree in a bridged network that connects different MST regions and STP or RSTP devices. Figure 4-22. Example of show spanning-tree root-history cst Command - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 160
Instance Spanning-Tree Operation Troubleshooting an MSTP Configuration Displaying Debug Counters for All MST Instances The show spanning-tree debug-counters command allows you to display the aggregate values of all MSTP debug counters that are maintained on a switch. These aggregate values are - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 161
Instance Spanning-Tree Operation Troubleshooting an MSTP Configuration Displaying Debug Counters for One MST Instance The show spanning-tree debug-counters instance command allows you to display the aggregate values of all MSTP debug counters maintained on a switch for a specified spanning-tree - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 162
Multiple Instance Spanning-Tree Operation Troubleshooting an MSTP Configuration ProCurve(config)# show spanning-tree debug-counters 5 Ports MST BPDUs Rx 172577 Ports Figure 4-26. Example of show spanning-tree debug-counters instance Command Output for All Ports in the CIST Instance 4- - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 163
show spanning-tree debug-counters instance ports command to troubleshoot at a finer level the more general MSTP diagnostic information specified ports configured for VLANs in the specified MST instance. The valid values for instance are from 0 to 16: • 0 specifies the default MST (CIST - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 164
Troubleshooting an MSTP Configuration ProCurve(config)# show spanning-tree debug-counters instance 0 ports a15 Status and Counters - CIST Port(s) Debug Counters Information MST Instance ID : 0 Port : A15 Counter Name Value Last Updated . Example of show spanning-tree debug-counters instance ports Command Output - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 165
Troubleshooting an MSTP Configuration ProCurve(config)# show spanning-tree debug-counters instance 2 ports a15 Status and Counters - MSTI Port(s) Debug Counters Information MST Instance ID : 2 Port : A15 Counter Name Value Last Updated 18:03:52 Figure 4-28. Example of show spanning-tree debug- - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 166
Troubleshooting an MSTP Configuration Field Description MST Config Error BPDUs Number of BPDUs received from a neighbor bridge with inconsistent MST configuration information. For example aged out. This counter is maintained by the CIST (default MST instance 0) on a per-port basis. Exceeded Max - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 167
Multiple Instance Spanning-Tree Operation Troubleshooting an MSTP Configuration Field Exceeded Max Hops MSTI the port. This counter is maintained by the CIST (default MST instance 0) on a per-port basis. Number of (802.1D) Configuration BPDUs that are transmitted through the port. This counter is - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 168
of times that the MSTI detected a configuration message destined to the MSTI in (802.1s) MST BPDUs received on the port. This counter is maintained on a per-MSTI perport basis. Troubleshooting MSTP Operation Table 4-2. Troubleshooting MSTP Operation Problem Possible Cause Duplicate packets on - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 169
Domain Spanning tree enabled ports Switch Loop protection enabled 'edge' ports that connect to unmanaged switches and/or authenticated clients Web authentication clients 802.1X authentication clients Unmanaged switch (does not support STP) Figure 4-29. Examples of Loop Protection Enabled in - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 170
example: ProCurve(config)# loop-protect 1 receiver-action senddisable Syntax: [no] loop-protect [receiver-action ] | [transmit-interval ] | [disable-timer ] | [trap loop-detected] Allows you to configure per-port loop protection on the switch - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 171
configured, all detected loops will be logged in the switch's event log. ■ The no loop-protect command will not remove a receive-action configuration line from the running configuration the ports that have loop protection enabled. For example: ProCurve(config)# show loop-protect 1-4 Status - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 172
QoS 5-11 Preserving 802.1p Priority 5-11 Steps for Configuring QoS on the Switch 5-11 Viewing the QoS Configuration 5-13 No Override 5-13 Using QoS Classifiers to Configure Quality of Service for Outbound Traffic 5-14 QoS IP Type-of-Service (ToS) Policy and Priority 5-15 Assigning an 802.1p - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 173
Quality of Service (QoS): Managing Bandwidth More Effectively Contents Error Messages caused by DSCP Policy Changes 5-36 Example of Changing the Priority Setting on a Policy When One or More Classifiers Are Currently Using the Policy . 5-37 QoS Queue Configuration 5-40 QoS Operating Notes and - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 174
-Service Priority Source-Port Priority DSCP Policy Table Queue Configuration Default end-to-end traffic priority policy to improve control and throughput of important data. You can manage available bandwidth so that the most important traffic goes first. For example, you can use Quality of Service - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 175
with the priority set in the VLAN tag. Carry priority downstream on tagged VLANs. Figure 5-1. Example of 802.1p Priority Based on CoS (Class-of-Service) Types and Use of VLAN Tags Edge Switch Classify inbound traffic on IP-device (address). Apply DSCP markers to selected traffic. Set Policy - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 176
guide support these types of traffic marking: ■ 802.1p prioritization: Controls the outbound port queue priority for traffic leaving the switch, and (if traffic exits through a VLAN-tagged port) sends the priority setting with the individual packets to the downstream devices. ■ IP Type-of-Service - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 177
that is present in the header of Ethernet packets entering or leaving the switch through a port that is a tagged member Service) byte in IP packets. There are 64 possible codepoints. In the default QoS configuration for the switches covered in this guide, some codepoints are configured with default - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 178
of Service (QoS): Managing Bandwidth More Effectively Introduction Term Use in This Document outbound port queue For any port, a buffer that holds outbound traffic until it can leave the switch through that port. By default, there are eight outbound queues for each port in the switch. Queue - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 179
determine the forwarding queues in the switch.) ■ Configuring a priority for outbound packets and a service (priority) policy for use by the switches covered in this guide. Also, if the packet enters the switch with an 802.1p priority setting, QoS can override this setting if configured with - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 180
Note Quality of Service (QoS): Managing Bandwidth More Effectively Introduction You can configure a QoS priority of 4 802.1p Priority Setting Added to Queue Tagged VLAN Packets Leaving Assignment in the Switch Downstream Devices With: 4 Queues 1 (low priority) 2 Queue 1 0 (normal priority - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 181
and Evaluation Order The switches covered in this guide provide the following QoS classifiers (packet criteria) you can use to configure QoS priority. Table 5-4. Classifier Search Order and Precedence Search Precedence QoS Classifier Type Order 1 1 (highest) IP Type of Service (ToS) field (IP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 182
the DSCP policy option. Also, to use a service policy in this manner, the downstream devices must be configured to interpret and use the DSCP carried in the having an 802.1Q field in the header. Steps for Configuring QoS on the Switch 1. Determine the QoS policy you want to implement. This - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 183
your network in order to implement the desired policy. Also, if you want downstream devices to read and use DSCPs in IP packets from the switch, configure them to do so by enabling ToS Differentiated Service mode and making sure the same DSCP policies are - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 184
Quality of Service (QoS): Managing Bandwidth More Effectively Preparation for Configuring QoS Viewing the QoS Configuration The following show commands are available on the switches covered in this guide. Examples of the show qos output are included with the example for each priority type. Syntax: - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 185
Bandwidth More Effectively Using QoS Classifiers to Configure Quality of Service for Outbound Traffic Using QoS Classifiers to Configure Quality of Service for Outbound Traffic Note QoS Feature IP Type-of-Service Priority Source-Port Priority Default Disabled Disabled Reference page 5-15 page - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 186
mode, you must use the dscp-map command to configure the desired 802.1p priorities for the codepoints you want to use for either option. This command is illustrated in the following examples and is described under "Differentiated Services Codepoint (DSCP) Mapping" on page 5-33. Unless IP-Precedence - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 187
type-of-service ip-precedence Causes the switch to automatically configure and verify this option: Default ToS Configuration Current ToS Configuration Figure 5-3. Example of Enabling ToS IP-Precedence Prioritization To replace this option with the ToS diff-services option, configure diff-services - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 188
specific DSCP and forward these packets with the desired 802.1p priority. For example, if an edge switch "A" marks all packets received on port A5 with a particular DSCP, you can configure a downstream (interior) switch "B" to handle such packets with the desired priority (regardless of whether 802 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 189
" on page 5-33.) 4. Enable diff-services. Syntax: qos type-of-service diff-services < codepoint > Causes the switch to read the < codepoint > (DSCP) of an incoming IPv4 packet and, when a match occurs, assign a corresponding 802.1p priority, as configured in the switch's DSCP table (page 5-34). no - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 190
Mapping" on page 5-33.) show qos type-of-service Displays current Type-of-Service configuration. In diffserv mode it also shows the current direct 802.1p assignments and the current DSCP assignments covered later in this section. For example, an edge switch "A" in an untagged VLAN assigns a DSCP of - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 191
named as DSCP policies by other codepoints (000001 and 000110 respectively). This means they are not available for changing to a different 802.1p priority. Figure 5-6. Example of a Type-of-Service Configuration Enabling Both Direct 802.1p Priority Assignment and DSCP Policy Assignment 5-20 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 192
restrictions, refer to table 5-11 on page 5-41. Syntax: qos type-of-service diff-services Enables ToS diff-services. Syntax: qos type-of-service diff-services < current-codepoint > dscp < new-codepoint > Configures the switch to select an incoming IP packet carrying the and then - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 193
: show qos type-of-service Displays a listing of codepoints, with any corresponding DSCP policy re-assignments for outbound packets. Also lists the (802.1p) priority for each codepoint that does not have a DSCP policy assigned to it. For example, suppose you want to configure the following two DSCP - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 194
): Managing Bandwidth More Effectively Using QoS Classifiers to Configure Quality of Service for Outbound Traffic The DSCPs for this example have not yet been assigned an 802.1p priority level. Figure 5-7. Display the Current DSCP-Map Configuration 2. Configure the policies in the DSCP table: Figure - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 195
(ToS) byte. The ToS byte includes: ■ A Differentiated Services Codepoint (DSCP): This element is com- prised of the upper six bits of the ToS byte). There are 64 possible codepoints. • In the switches covered in this guide, the default qos configuration includes some codepoints with 802.1p priority - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 196
(QoS): Managing Bandwidth More Effectively Using QoS Classifiers to Configure Quality of Service for Outbound Traffic a. Configure a specific DSCP with a specific priority in an edge switch. b. Configure the switch to mark a specific type of inbound traffic with that DSCP (and thus create a policy - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 197
Configure Quality of Service for Outbound Traffic Table 5-7. How the Switch Uses the ToS Configuration Outbound Port ToS Option: 802.1p (Value = 0 - 7) Differentiated Services the default) has been configured for a specified codepoint, then the packet is not prioritized by ToS and, by default, - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 198
session. Refer to the RADIUS chapter in the Access Security Guide for your switch. Assigning a Priority Based on Source-Port This option assigns a priority to all outbound packets having the specified source-port. You can configure this option by either specifying the source-port ahead of the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 199
(QoS): Managing Bandwidth More Effectively Using QoS Classifiers to Configure Quality of Service for Outbound Traffic Syntax: no interface < port-list > qos Disables use of the specified source-port(s) for QoS classifier(s) and resets the priority for the specified source-port(s) to No-override - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 200
the basis of its source-port on the switch. 2. Overwrites the packet's DSCP with the DSCP configured in the switch for such packets. 3. Assigns the 802.1p priority configured in the switch for the new DSCP. (Refer to "Differentiated Services Codepoint (DSCP) Mapping" on page 5-33.) 4. Forwards the - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 201
Configure Quality of Service for Outbound Traffic 3. Configure the DSCP policy by using qos dscp-map to configure the priority for each codepoint. (For details, refer to the example leaves the switch on a tagged port, it carries the 802.1p priority with it to the next downstream device. (Default: For - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 202
(QoS): Managing Bandwidth More Effectively Using QoS Classifiers to Configure Quality of Service for Outbound Traffic For example, suppose you wanted to assign this set of priorities: Source-Port A2 B1-B3 B4, C2 DSCP 000111 000101 000010 Priority 7 5 1 1. Determine whether the DSCPs - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 203
5-15. The Completed Source-Port DSCP-Priority Configuration Radius Override Field. During a client session authenticated by a RADIUS server, the server can impose a port priority that applies only to that client session. Refer to the RADIUS chapter in the Access Security Guide for your switch. 5-32 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 204
Services Codepoint (DSCP) Mapping The DSCP Policy Table associates an 802.1p priority with a specific ToS byte codepoint in an IPv4 packet. This enables you to set a LAN policy that operates independently of 802.1Q VLAN-tagging. In the default name < ascii-string >] Configures an 802.1p priority for - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 205
-override No-override No-override *Assured Forwarding codepoints; configured by default on the switches covered in this guide. These codepoints are configured as "No-override". **Expedited Forwarding codepoint configured by default. Default Priority Settings for Selected Codepoints In a few cases - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 206
498358-B21 Configuration Editor; Created on release #Z.14.XX hostname "ProCurve 6120G/XG Blade Switch" qos dscp-map 001100 priority 3 qos dscp-map 001101 priority 3 qos dscp-map 001110 priority 3 interface D1 Show config lists the non default codepoint settings. . . . Figure 5-16. Example of - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 207
to change; that is: show qos port-priority show qos type-of-service For example, suppose that the 000001 codepoint has a priority of 6, and several 1. Identify which QoS classifiers use the codepoint. 2. Change the classifier configurations by assigning them to a different DSCP policy, or to an 802. - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 208
(QoS): Managing Bandwidth More Effectively Differentiated Services Codepoint (DSCP) Mapping Message Meaning Cannot modify DSCP try to change its priority, you see a result similar to the following: Figure 5-17. Example of Trying To Change the Priority on a Policy In Use by a Classifier In this - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 209
-> 802.p priority mappings NOTE: 'qos type-of- service diff-services' must be configured before DSCP is honored on inbound traffic. DSCP CodePoint . ProCurve (config)# show qos type-of-service Type of Service : Disabled Figure 5-18. Example of a Search to Identify Classifiers Using a - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 210
(QoS): Managing Bandwidth More Effectively Differentiated Services Codepoint (DSCP) Mapping 2. Change the classifier configurations by assigning them to a different DSCP policy, or to an 802.1p priority, or to No-override. For example: a. Delete the policy assignment for the dscp-map classifier - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 211
Quality of Service (QoS): Managing Bandwidth More Effectively QoS Queue Configuration QoS Queue Configuration By default, there are four priority queues or traffic classes. These are shared across all ports. This number cannot be reconfigured. 5-40 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 212
Restrictions for QoS Support Packet Criteria or Restriction QoS Classifiers Device IP Type-of- Source Priority (IP Service Port Address) Restricted Not Support 802.1Q VLAN-Tagged Ports: For communication between these devices and the switch, connect the device to a switch port configured as - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 213
different 802.1p priority. For example, where inbound packets carry an 802.1p priority of 1, QoS cannot be configured use this priority as a classifier for changing the outbound priority to 0. ■ Monitoring Shared Resources: The QoS feature shares internal switch resources with several other features - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 214
, if both IGMP high priority and QoS are configured, the QoS classification occurs and the switch marks the packet for downstream devices, but the packet is serviced by the high-priority queue when leaving the switch. IGMP High QoS Configuration Switch Port Output Outbound 802.1p Setting Priority - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 215
... 4-3 C command syntax conventions ... 1-2 configuration ... 4-10 Class of Service ... 5-11 factory default ... 2-21, 2-27, 4-9 spanning tree protocol static VLANs, 8 ... 2-4 VLAN name ... 2-28, 2-35 VLAN support, 256 VLANs ... 2-16 default VLAN ... 2-9, 2-13, 2-27, 2-45 DHCP gateway ignored ... - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 216
ToS field ... 5-15 IP address quick start ... 1-8 IP, type of service configuring priority ... 5-15 IPv6 management VLAN is for v6 traffic ... 2-53 J jumbo frames GVRP ... 3-19 L legacy VLAN ... 2-11 loop protection configuring ... 4-70 send-disable ... 4-70 show ... 4-72 transmit-interval ... 4-71 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 217
for prioritizing packets ... 5-10 type of service screen ... 5-15 VLAN ID priority ... 5-27 ProCurve switch documentation ... -ix Q Quality of Service basic operation ... 5-7 configuring ... 5-11, 5-14 configuring IP type of service ... 5-15 criteria for prioritizing outbound packets ... 5-10 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 218
and 802.1w connections ... 4-16 default configuration ... 4-9 designated bridge ... 4-11, 4-14 designated port ... 4-11 disabling MSTP ... 4-40 display statistics and configuration ... 4-49 dynamic VLANs, disallowed ... 4-9 edge port ... 4-26 enabling a region ... 4-40 enabling MSTP ... 4-40 example - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 219
... 4-16 pending configuration ... 4-57 pending option ... 4-9, 4-22, 4-40 per-VLAN STP ... 4-6 planning ... 4-17 port connectivity ... 4-26 port Type of Service. trunk, spanning-tree example ... 4-12 Type of Service configuring packet priority ... 5-15 how the switch uses ToS configuration ... 5-26 - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 220
configuring parameters ... 2-27 convert dynamic to static ... 2-37, 3-3 dedicated management ... 2-45 default VLAN VID ... 2-45 default to port-based ... 2-7 configuration ... 2-27, 2-35 example ... 2-43 forbid option not 21, 2-27, 2-46 subnet ... 2-4 switch capacity ... 2-4 tagging ... 2-40, 2- - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 221
VID, default VLAN ... 2-45 voice ... 2-5, 2-29, 2-30, 2-32, 2-55 voice, configuration ... 2-36 voice, configuring ... 2-28 voice, VLAN type ... 2-13 web browser configuration ... 2-39 See also GVRP. VLANs static, 802.1s spanning tree ... 4-8 voice VLAN See VLAN. VoIP operating rules ... 2-13 See - HP 6120XG | HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 222
forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP will not be liable for technical or editorial errors or omissions contained herein. August 2009 Manual Part Number 5992-5524 *5992-5524*
August 2009
ProCurve Series 6120 Switches
Advanced Traffic Management Guide