Dell PowerConnect 2848 User's Guide

Dell PowerConnect 2848 Manual

Dell PowerConnect 2848 manual table of contents:

  • Dell PowerConnect 2848 | User's Guide - Page 1
    Dell™ PowerConnect™ 28xx Systems User Guide w w w. d e l l . c o m | s u p p o r t . d e l l . c o m
  • Dell PowerConnect 2848 | User's Guide - Page 2
    ... to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury,...OpenManage, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, PowerConnect, PowerApp, PowerVault, Axim, DellNet, and Latitude are trademarks ...
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    ... 13 14 15 16 16 System Description. PowerConnect 2808 ...PowerConnect 2816 ...PowerConnect 2824 ...PowerConnect 2848 ...Summary of PowerConnect Models Features ...... 22 22 22 22 23 23 24 24 24 25 ... PowerConnect 28xx Front and Back Panel Port Description. ... ... Power LED ...Managed Mode LED . ...
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    Power Connectors ... 26 26 Internal Power Supply Connector 3 Installing the PowerConnect Device Installation Precautions . Site Requirements Unpacking ... 27 27 28 28 28 28 29 29 29 30 31 32 32 33 34 35 35 36 36 36 36 36 37 ... ... ... Package ...
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    ... the Device Configuration ...Password Recovery...Software Download Through TFTP Server . Management Modes ...55 55 56 56 56 ... ... Using the Switch Administrator Buttons Information Buttons ...Device... ...Viewing Optical Transceiver Diagnostics Managing Device Security Defining the Local User Databases...
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    ... Authentication ...Configuring Advanced Port Based Authentication . Authenticating Users ...Configuring Ports. Defining Port Parameters ...Aggregating Ports...Configuring Green... Dynamic Addresses . Defining STP Global Settings . Defining STP Port Settings . . Defining STP LAG Settings ....
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    ... Tree . Configuring VLANs . Defining VLAN Members ...VLAN Port Membership Table Defining VLAN Ports Settings . Defining VLAN LAG Settings . Aggregating Ports Defining LAG Membership Multicast Forwarding Support . ... 124 126 126 128 130 131 133 ...
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    ... 169 171 172 Command Mode Overview . . User EXEC Mode ...Privileged EXEC Mode ...Global Configuration Mode . . Interface Configuration...) ...Command: help ...Command: interface ethernet...Command: interface port-channel ...Command: interface vlan ...Command: ip address ...Command: ip default-gateway ...
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    ... the information needed for installing, configuring and maintaining the PowerConnect 2808, PowerConnect 2816, PowerConnect 2824, and PowerConnect 2848 Webmanaged Gigabit Ethernet switches. The ... figure illustrates the PowerConnect 2816 front panel. Dell PowerConnect 28xx Systems User Guide 9
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    ... following ports: • 16 Gigabit Ethernet copper ports PowerConnect 2824 The following figure illustrates the... front panel. Figure 1-3. PowerConnect 2824 Front Panel The PowerConnect 2824 supports the following ports: ...ports (1000BASE-SX or 1000BASE-LX) 10 Dell PowerConnect 28xx Systems User Guide
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    ... the PowerConnect models. Table 1-1. PowerConnect Models Model PowerConnect 2808 PowerConnect 2816 PowerConnect 2824 PowerConnect 2848 Copper Ports/ RJ-45 Connectors 8 ... this feature on a per-port basis. The default status on all ports is set to OFF. Dell PowerConnect 28xx Systems User Guide 11
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    ... for the entire system and cannot be turned off by the user. Flow Control Support (IEEE802.3X) On Full Duplex links (FDX), the flow control mechanism allows the ..., the following parameters are detected Cable Type and Status Cable Length Fault-Distance 12 Dell PowerConnect 28xx Systems User Guide
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    MAC Address Supported Features MAC Address Capacity Support The PowerConnect 2808, 2816, 2824 switches support a total of 8K MAC addresses, and the ... of inactivity on a port, and subsequent reducing of transmit power. Dell PowerConnect 28xx Systems User Guide 13
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    ... Port Based Virtual LANs (VLANs) Port-based VLANs classify incoming packets to VLANs based on their ingress port. Link Aggregation The PowerConnect 28xx switches support up to six aggregated links. Each of the six aggregated links may ...
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    ...to all ports on the default VLAN, until a BootP server replies. The information replied is then used to provide the switch system with a TFTP server...loops. STP Root Guard Root guard restricts the interface from functioning as the root port for the switch Dell PowerConnect 28xx Systems User Guide 15
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    ... pages, through which the system can be monitored and configured. TFTP Trivial File Transfer Protocol The PowerConnect 28xx switches support software boot image and software download through TFTP . Remote Monitoring Remote Monitoring (RMON)...
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    2 Hardware Description Switch Port Configurations PowerConnect 28xx Front and Back Panel Port Description The Dell™ PowerConnect™ 28xx switches use... modes and transitioning between them, see "Management Modes" on page 49. Dell PowerConnect 28xx Systems User Guide 17
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    Figure 2-2. PowerConnect 2808 Back Panel Figure 2-3. PowerConnect 2816 Front Panel On the front panel there are 16 ports which... management modes and transitioning between them, see "Management Modes" on page 49. Figure 2-4. PowerConnect 2816 Back Panel 18 Dell PowerConnect 28xx Systems User Guide
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    Figure 2-5. PowerConnect 2824 Front Panel On the front panel there are 24 ports which are numbered 1 to 24, top down and left to ... the device. For more information about management modes and transitioning between them, see "Management Modes" on page 49. Dell PowerConnect 28xx Systems User Guide 19
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    Figure 2-6. PowerConnect 2824 Back Panel Figure 2-7. PowerConnect 2848 Front Panel On the front panel there are 48 ports, which are numbered 1 ...status, and the Power LED on the front panel indicates whether the device is powered on or not. A Mode push- 20 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 21
    ...7008 in.) Width - 256 mm (10.079 in.) Depth - 161.7 mm (6.366 in.) The PowerConnect 2816 and PowerConnect 2824 switches have the following physical dimensions Height - 43.2..., power supply, fan status, and Managed Mode status. Dell PowerConnect 28xx Systems User Guide 21
  • Dell PowerConnect 2848 | User's Guide - Page 22
    ...image. Indicates Unmanaged mode or Secure mode. Fan LED (2824/2848 only) On the PowerConnect 2824 and PowerConnect 2848 front panel there is a fan LED. The following table describes the fan status... the RJ-45 10/100/1000BASE-T LEDs. 22 Dell PowerConnect 28xx Systems User Guide
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    ..., see "Management Modes" on page 49. Switch Ventilation Fan The PowerConnect 2848 switch has three fans and the PowerConnect 2824 switch has one fan for .... The PowerConnect 2808 and PowerConnect 2816 devices have no internal fans. Dell PowerConnect 28xx Systems User Guide 23
  • Dell PowerConnect 2848 | User's Guide - Page 24
    ... cables and port connections. Copper cable diagnostics are supported. High-speed workstations, hubs, routers, or other switches are connected through standard RJ-45 .../ 1000BASE-T Ethernet Port Pin No 1 2 3 4 5 Function TxRx 1+ TxRx 1TxRx 2+ TxRx 2TxRx 3+ Dell PowerConnect 28xx Systems User Guide 24
  • Dell PowerConnect 2848 | User's Guide - Page 25
    ... PowerConnect 2824 switch supports two SFP transceivers combo ports, and the PowerConnect 2848 ... the media used on a combo port, and utilizes this information in the control interfaces. PowerConnect 2824 switch supports SFP diagnostics. The optical transceiver provides access to a set of parameters ...
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    ... inverted data in Transmitter ground (common with receiver ground) Power Connectors The PowerConnect 28xx is powered by using the AC internal power supply. Internal ... 100 and 240 VAC. The AC power connector is located on the back panel of the switch. 26 Dell PowerConnect 28xx Systems User Guide
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    ... covers or touching internal equipment. Ensure that the device does not overload the power circuits, wiring, and over-current protection. To determine the ... that the airflow around the front, sides, and back of the device is not restricted. • • Dell PowerConnect 28xx Systems User Guide 27
  • Dell PowerConnect 2848 | User's Guide - Page 28
    Site Requirements The PowerConnect 28xx can be mounted in a standard equipment rack, placed on a tabletop, or... CD • Product Information Guide Unpacking the Device To unpack the PowerConnect device: NOTE: Before ... surface. 4 Remove all packing material. 28 Dell PowerConnect 28xx Systems User Guide
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    ... a rack or cabinet. CAUTION When mounting multiple devices into a rack, mount the devices from the bottom up. ... holes on the device line up to the mounting holes on the rack mounting bracket. The following figure illustrates where to mount the brackets. Dell PowerConnect 28xx Systems User Guide 29
  • Dell PowerConnect 2848 | User's Guide - Page 30
    ...3-1. Bracket Installation for Rack Mounting 2 Insert the supplied screws into the rack mounting holes and tighten with a screwdriver. 3 Repeat the process for the rack-...and 5 inches (12.7 cm) at the back. 3 Ensure that the device has proper ventilation. 30 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 31
    ... screwdriver. 4 Repeat the process for the wall-mounting bracket on the other side of the device. 5 Place the device on the wall in the location where the device is being installed. Dell PowerConnect 28xx Systems User Guide 31
  • Dell PowerConnect 2848 | User's Guide - Page 32
    .... Standard straight-through twisted-pair cables can be used to connect to any other Ethernet network (systems, servers, switches or routers) that supports auto-negotiation. 32 Dell PowerConnect 28xx Systems User Guide
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    ...a Twisted-Pair cable to the device's RJ-45 connector and the other end to a switch or server. 2 Make sure each twisted pair cable does not exceed 328 feet (... www.microsoft.com for information on Windows 2000, Windows XP, and Windows Vista service packs. Dell PowerConnect 28xx Systems User Guide 33
  • Dell PowerConnect 2848 | User's Guide - Page 34
    ... a power source in the steps detailed in Starting and Configuring the Device. Figure 3-4. Connecting to Power Supply 3 After connecting the device to a power ...that the device is connected and operating correctly by examining the LEDs on the front panel. 34 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 35
    ...summarized in Ports, Connectors, and Cables. Copper Cable and Optical Transceiver Diagnostics are supported. RJ-45 Connections for 10/100/1000BaseT Ports The 10/100/1000BaseT ports ...2 3 4 5 6 7 8 TxRx 1+ TxRx 1TxRx 2+ TxRx 2TxRx 3+ TxRx 3TxRx 4+ TxRx 4- Dell PowerConnect 28xx Systems User Guide 35
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    ... the transmitting side from transmitting additional traffic temporarily. The receiving side may occupy a link so it becomes unavailable for additional traffic. 36 Dell PowerConnect 28xx Systems User Guide
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    ... Port forwarding state Port tagging Flow Control Back Pressure MDIX (not user-configurable) Default Setting 10/100/1000BaseT copper: auto-negotiation full duplex Enabled No tagging On Off (disabled on ingress) On (relevant to coppers ports only) Dell PowerConnect 28xx Systems User Guide 37
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    38 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 39
    ..., connect a terminal to the device to configure the device and for other procedures. For initial configuration, the standard device configuration is performed. Dell PowerConnect 28xx Systems User Guide 39
  • Dell PowerConnect 2848 | User's Guide - Page 40
    ... Mode The procedure described in this section refers to the device when set to operate as a managed switch. The PowerConnect 2808/16/24/48 models include a built-in dual purpose ... RS-232 crossover cable. 2 Locate an AC power receptacle. 40 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 41
    ...-set in Unmanaged Mode. NOTE: The initial simple configuration uses the following assumptions: • • • The PowerConnect ... and configure the device manually through the device CLI mode (see "Managing the Device ... Wizard configures the following fields. Dell PowerConnect 28xx Systems User Guide 41
  • Dell PowerConnect 2848 | User's Guide - Page 42
    ... like to setup the SNMP management interface now? (Y/N)[Y] Y Enter [N] to skip to Step 2. Enter [Y] to continue the Set-up wizard. The following information displays: 42 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 43
    ... following information displays: Next, an IP address is setup. The IP address is defined on the default VLAN ,(VLAN #2) . This is the IP address you use to access the Telnet, Web....6.22.100 Please enter the IP subnet mask (A.B.C.D or nn):[255.255.255.224] Dell PowerConnect 28xx Systems User Guide 43
  • Dell PowerConnect 2848 | User's Guide - Page 44
    ... information that has been collected SNMP Interface = Dell_Network_Manager@0.0.0.0 User Account setup = admin Password Management IP address = 10.6.22.100 255.255.255.224 ...server includes the IP address, and may include subnet mask and default gateway. 44 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 45
    ..., the device acts as a DHCP client. When the device is reset, the DHCP command is saved in the configuration file, but not the IP address. To configure the device so it ... Validation Test...PASS BOOT Software Version 1.0.0.20 Built 22-Jan-xxxx 15:09:28 Dell PowerConnect 28xx Systems User Guide 45
  • Dell PowerConnect 2848 | User's Guide - Page 46
    ... some cases, the device configuration must be erased. If the configuration is erased, all parameters configured via CLI, EWS or SNMP must be reconfigured. 46 Dell PowerConnect 28xx Systems User Guide
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    ... security, reconfigure passwords for applicable management methods. Software Download Through TFTP Server This section contains instructions for downloading device .... 2 Make sure that the file to be downloaded is saved on the TFTP server (the ros file). Dell PowerConnect 28xx Systems User Guide 47
  • Dell PowerConnect 2848 | User's Guide - Page 48
    ...[hh:mm:ss] 4 Enter the reload command. The following message is displayed: console# reload This command will reset the whole system and disconnect your current 48 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 49
    ... maintained through power cycles. The Managed Mode LED provides an indication of the current mode (see "On the PowerConnect 28xx front panel there is a Managed Mode LED monitoring the switch node as ... - Off Flow Control - On STP - Off Dell PowerConnect 28xx Systems User Guide 49
  • Dell PowerConnect 2848 | User's Guide - Page 50
    Transitioning Between Modes The following diagram summarizes movement between modes: Figure 4-2. Transitioning Between Management Modes 50 Dell PowerConnect 28xx Systems User Guide
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    ... were automatically saved when you exited Managed mode. When restoring a saved configuration, this option uses the IP address, user name and password inside the .... Apply Changes - The selected configuration is restored and the device reboots. • • Dell PowerConnect 28xx Systems User Guide 51
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    52 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 53
    ... or table area, and configuration instructions. Figure 5-1. Switch Administrator Components Table 5-1 lists the interface components with their corresponding numbers. Dell PowerConnect 28xx Systems User Guide 53
  • Dell PowerConnect 2848 | User's Guide - Page 54
    ... to Dell Support. For more information, see "Information Buttons." 2 4 Device Representation The PowerConnect home page contains a graphical device representation of the front panel. Figure 5-2. Port LED Indicators 54 Dell PowerConnect 28xx Systems User Guide
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    ... on the port. The port is currently disabled. NOTE: The Port LEDs are not reflected in PowerConnect front panel in the PowerConnect OpenManage Switch Administrator. LED status can ... application and closes the browser window. About Log Out Dell PowerConnect 28xx Systems User Guide 55
  • Dell PowerConnect 2848 | User's Guide - Page 56
    ..., see "Management Modes" on page 49. 4 Click OK. The Dell PowerConnect OpenManage™ Switch Administrator home page opens. Access Levels When you login to ... automatically assigned one of the following modes, based upon the access level assigned to you: 56 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 57
    ... can see a subset of the interface pages, but you cannot edit them. For more information about setting the access level, see ("Defining the Local User Databases" on page 69). Dell PowerConnect 28xx Systems User Guide 57
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    58 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 59
    ... defining system parameters including security features, downloading device software, and resetting the device. To open the System page, click System in the tree view. Figure ... the Asset page, click System → General → Asset in the tree view. Update with your book title 59
  • Dell PowerConnect 2848 | User's Guide - Page 60
    Figure 6-2. Asset System Name (0-159 Characters) - Defines the user-defined device name. System Contact (0-159 Characters) -... the service reference number used when servicing the device. Asset Tag (0-16 Characters) - Specifies the user-defined device reference. Serial No. - Specifies the...
  • Dell PowerConnect 2848 | User's Guide - Page 61
    ... fields. 3 Click Apply Changes. The system parameters are defined, and the device is updated. Initiating a Telnet Session: 1 Open the Asset page. 2 Click Telnet. A... - The current Boot version running on the device. Hardware Version - The current hardware version. Update with your book title 61
  • Dell PowerConnect 2848 | User's Guide - Page 62
    ... 2 Click reset. A confirmation message displays. 3 Click OK. The device is reset. After the device is reset, a prompt for a user name and password displays. 4 Enter a user name and password to reconnect to the Web Interface. 62 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 63
    ... put the device in the Secure management mode. Once enabled, it prevents users from making any further configuration changes to the switch. This is done by removing the IP address of .... To use Secure Mode, configure the device in Managed Mode, and then switch to Secure Mode via the ...
  • Dell PowerConnect 2848 | User's Guide - Page 64
    Defining Device IP Addresses The IP Addressing page contains links for assigning interface ...network configuration dynamically. The DHCP default value is Disable. This field enables the DHCP client. IP ...Subnet Mask - Specifies the Subnet Mask received from the DHCP server. Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 65
    ... 4 Click Apply Changes. DHCP is enabled and the device is updated. Setting static IP Interface parameters: 1 Open the IP Interface .... 4 Click Apply Changes. The static interface parameters are set and the device is updated. Running Cable Diagnostics The Diagnostics page contains links to pages for ...
  • Dell PowerConnect 2848 | User's Guide - Page 66
    ...• Cable Fault Distance - The distance from the port where the cable error occurred. Last Update - The last time the port was tested. Approximate Cable Length - The approximate ..., and the results are displayed on the Integrated Cable Test for Copper Cables page. 66 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 67
    ... Power - The rate at which the output power is transmitted. Input Power - The rate at which the input power is transmitted. Transmitter Fault - Indicates if a fault occurred during transmission. Update with your book title 67
  • Dell PowerConnect 2848 | User's Guide - Page 68
    .... Data Ready - The transceiver has archived power up and data is ready. N/A - Not Available, N/S - Not Supported, W - Warning, E - Error. Finisair ... testing. Fiber Optic analysis feature works only on SFPs that support the digital diagnostic standard SFF-4872. 68 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 69
    ... pages that contain fields for setting security parameters for user database, password and RADIUS security. To open the Management Security page, click ...the Local User Database page. 2 Select a user in the User Name field. 3 Define the fields. Update with your book title 69
  • Dell PowerConnect 2848 | User's Guide - Page 70
    4 Click Apply Changes. The user access rights and passwords are defined, and the device is updated. Defining a New User: 1 Open the Local User Database page. 2 Click ... the fields. 4 Click Apply Changes. The new user is defined, and the device is updated. Displaying the Local User Table:...
  • Dell PowerConnect 2848 | User's Guide - Page 71
    .... 5 Click Apply Changes. The selected user is deleted and the device is updated. RADIUS servers provide a ... to Device Access Configuring RADIUS Global Parameters Remote Authorization Dial-In User Service (RADIUS) servers provide additional security for networks. To open the RADIUS Settings page, ...
  • Dell PowerConnect 2848 | User's Guide - Page 72
    ... device waits for an answer from the RADIUS server before retrying the query, or switching to the next server. The possible field values are 1 - 30. ... Settings page. 2 Define the fields. 3 Click Apply Changes. The RADIUS setting are updated to the device. Adding a RADIUS Server: 1 Open the RADIUS ...
  • Dell PowerConnect 2848 | User's Guide - Page 73
    ... Changes. The new RADIUS server is added, and the device is updated. Displaying the RADIUS Server List: 1 Open the RADIUS Settings page. 2 Click Show ... all RADIUS Servers Modifying the RADIUS Server Settings: 1 Open the RADIUS Settings page. Update with your book title 73
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    ... Changes. The RADIUS Server settings are modified, and the device is updated. Deleting a RADIUS Server ... (SNMP) provides a method for managing network devices. Devices supporting SNMP run a local .... This section contains information for managing the SNMP configuration. 74 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 75
    ... field. 3 Click Apply Changes. SNMP notifications are enabled, and the device is updated. Enabling Authentication Notifications 1 Open the SNMP Global Parameters page. 2 Select Enable in the Authentication Notifications field. 3 Click Apply Changes. Update with your book title 75
  • Dell PowerConnect 2848 | User's Guide - Page 76
    ...• SNMP Management Station - A list of management station IP addresses. Community String - Functions as a password and used to authenticate the selected management station to the device. Access .... 2 Click Add. The Add SNMP Community page opens: 76 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 77
    .... All - Defines an SNMP community for all management stations. 4 Define the remaining fields. 5 Click .... The new community is saved, and the device is updated. Displaying all Communities 1 Open the SNMP ... Table opens. 3 Select a community from the Community Table. Update with your book title 77
  • Dell PowerConnect 2848 | User's Guide - Page 78
    ... contains information for defining filters that determine whether traps are sent to specific users, and the trap type sent. SNMP notification filters provide the following services Identifying Management Trap Targets Trap Filtering Selecting Trap Generation Parameters ...
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    ...fields. 4 Click Apply Changes. The notification recipient is added, and the device is updated. Displaying Notification Recipients Tables 1 Open Notification Recipients page. 2 ... Recipients Tables Deleting Notification Recipients 1 Open Notification Recipients page. Update with your book title 79
  • Dell PowerConnect 2848 | User's Guide - Page 80
    ... recipient is deleted, and the device is updated. Managing Files The File Management page contains fields for managing device software, the Image Files, and the Configuration Files. Files can be downloaded ... System → File Management → File Download in the tree view. 80 Update with your book ...
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    ... HTTP - Enables initiating an image download via the HTTP server. Firmware Download • • • Server IP Address - The Server IP Address from which the firmware ... the software image file. Boot Code - Downloads the boot file. Configuration Download • Server IP Address - ...
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    ...64 Characters) - Indicates the configuration files to be downloaded. During the image file download, a dialog box ... to Server page, click System → File Management → File Upload in the tree view. Figure...) - Indicates the file path to which the file is uploaded. 82 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 83
    ...their factory default values. To open the Restore Defaults page, click System → File Management ...page. 2 Check the Restore Configuration Factory Defaults checkbox. 3 Click Apply Changes. The settings are restored... (obtaining its own IP from a DHCP server) and as a DHCP server. Update with your book...
  • Dell PowerConnect 2848 | User's Guide - Page 84
    ... DHCP server uses a defined pool of IP addresses (user-defined) from which it allocates IP...period and the switch must request another IP address. • This section contains information for configuring .... Disable - Disables the DHCP server. This is the default value. 84 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 85
    ... Ping - Indicates if the DHCP server is set to ping the offered IP address before responding ...Optionally specifies the number of pings that are sent before an IP address can be assigned to a requesting client....System → DHCP Server → Network Pool in the tree view. Update with your book title 85
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    ... prefix. Address Pool Start - Specifies the first IP address in the range of the network pool. Address Pool... amount of time a DHCP client can use an IP address from this pool. The total lease duration ...Server - Specifies the DNS server available to the DHCP client. 86 Update with your book title
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    ... By default, the DHCP Server assumes that all pool addresses may be assigned to DHCP clients. The user can specify IP addresses that must not be used. These ... Addresses page, click System → DHCP Server → Excluded Addresses in the tree view. Update with your book title 87
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    ... the relevant fields. 4 Click Apply Changes. The address is excluded, and the device is updated. Deleting Excluded Addresses 1 Open the Excluded Addresses page. 2 Check the ...next to an address. 3 Click Apply Changes. The address is deleted, and the device is updated. 88 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 89
    ...Static Hosts) The Static Hosts page is used to manually allocate IP addresses to network hosts. To open the ..., piy4). The range is up to 32 characters. IP Address - Specifies the IP address that was statically assigned to... domain name may contain up to 32 characters. Update with your book title 89
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    ...to which type of NetBIOS node the client is. Broadcast - IP broadcast messages are used to register and resolve ...are used to register and resolve computer names to IP addresses. Mixed - A combination (mix) of b-node and ...2 Click Add. The Add Static Host page opens: 90 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 91
    ...Host 3 Define the relevant fields. 4 Click Apply Changes. The static host is added, and the device is updated. Displaying Static Hosts Tables 1 Open the Static Hosts page. 2 Click Show All. The Static Hosts Table page opens: Figure 6-30. Static Hosts Table Update with your book title 91
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    ... the Remove checkbox next to a static host. 4 Click Apply Changes. The host is deleted, and the device is updated. Configuring Address Binding The Address Binding page displays ... the end of this period and the switch must request another IP address. - 92 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 93
    ... are applied only after the device is reset. To open the Advanced Settings page, click System → ... Attribute - The general setting attribute. Current - The currently configured value. After Reset - The future (..., lower processing time, and fewer interrupts. Update with your book title 93
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    94 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 95
    ..., Address tables, GARP VLANs, Spanning Tree, Port Aggregation, and Multicast Support. , Configuring Network Security The ... is not required can be defined. Unauthenticated VLANs are available to users, even if the ports attached to the VLAN are defined as authorized. Update with your book title 95
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    ... authorized host for multiple-session access to the port. Guest VLANs - Provides limited network access to unauthorized ports.... page contains fields for configuring port based authentication and for enabling Guest VLANs. To open the Port Based Authentication page, click Switch → Network Security ...
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    .... When a user is authenticated by the RADIUS server, the user is automatically joined to the VLAN configured on the RADIUS server Port Lock and Port Monitor should be disabled ... DVA is enabled. Dynamic VLAN Assignment (DVA) can occur only if a RADIUS server is configured, and port ...
  • Dell PowerConnect 2848 | User's Guide - Page 98
    ... remain unauthenticated VLAN and Guest VLAN members. Static VLAN configuration is not applied to the port. The following list of VLANs ... supplicant is authorized during the next re-authentication if this supplicant VLAN is re-created or a new VLAN is configured on the RADIUS server. Guest VLAN ...
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    ... Table. 5 Select the Copy to check box to define the interfaces to which the Port based authentication parameters are copied. 6 Click Apply Changes. The parameters are copied to the selected port in the Port Based Authentication Table, and the device is updated. Update with your book title 99
  • Dell PowerConnect 2848 | User's Guide - Page 100
    ... port based authentication settings for specific ports. To open the Multiple Hosts, click Switch →Network Security ... remain locked until they are activated, or the device is reset. • 100 Traps - Enables or disables sending traps to the host if a violation occurs. Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 101
    ... on the interface in single-host mode, from a host whose MAC address is not the client (supplicant) MAC address. Displaying the Multiple Hosts Table 1 Open the Multiple Hosts page. 2 Click Show All. The Multiple Hosts Table opens: Figure 7-4. Multiple Hosts Table Update with your book title 101
  • Dell PowerConnect 2848 | User's Guide - Page 102
    ... port access lists. To open the Authenticated Users page, click Switch → Network Security → Authenticated ...Port - The port number(s) used for authentication - per user name. Session Time - The amount of time ... Table opens: Figure 7-6. Authenticated Users Table 102 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 103
    ...the Ports page, click Switch → Ports. Defining Port Parameters The Port Configuration page contains fields for defining port parameters. To open the Port Configuration page, click Switch → Ports → Port ..., and is not currently receiving or transmitting traffic. Update with your book title 103
  • Dell PowerConnect 2848 | User's Guide - Page 104
    ... Dependent Interface with Crossover) - Used for hubs and switches. Current MDI/MDIX- The currently configured device MDI/MDIX settings. LAG - Specifies if the port is part of a LAG. 104 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 105
    ..., or redirect the packets to the next available server. Load Balancing is configured on the "LAG Configuration" on page 106 page. LAGs can be configured according to the following load balancing types: Layer 2, or Layer 2 and Layer 3 or Layer3. Update with your book title 105
  • Dell PowerConnect 2848 | User's Guide - Page 106
    ... device supports up to four LAGs, each having six members. For information about Link Aggregated ... type enabled on the LAG. The possible field values are 106 Layer 2 - Enables load balancing based on...based on source and destination IP addresses. Layer 2-3 - Enables load balancing based on static ...
  • Dell PowerConnect 2848 | User's Guide - Page 107
    ...- Enables/disables flow control, or enables the auto negotiation of flow control on the LAG. Current Flow Control - The user-designated flow control setting. Defining LAG Parameters 1 Open the LAG Configuration page. 2 Select a LAG in the LAG...
  • Dell PowerConnect 2848 | User's Guide - Page 108
    ... equipment environmentally friendly, specifically by reducing power usage of Ethernet connections. The following methods are supported by the device: • • Energy-Detect - Auto-... page, click Switch→ Ports→ Green Ethernet Configuration in the tree view. 108 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 109
    ...the saved power multiplied by the time period in hours. - Reset - Click to set the Cumulative Power Saved counter back to 0. Link... energy saving mode is on or off for the device ports. Current Power Consumption - The power currently consumed by all ports (including both those with links up and ...
  • Dell PowerConnect 2848 | User's Guide - Page 110
    ... separately on each port, and discard frames when the rate exceeds a user-defined rate. The Storm Control page provides fields for enabling and configuring Storm Control. To... Control page, click Switch→ Ports→ Storm Control in the tree view. 110 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 111
    .... 2 Select an interface on which to implement storm control. 3 Define the fields. 4 Click Apply Changes. The Storm Control is enabled on the device. Displaying the Storm Control Table 1 Open the Storm Control page. 2 Click Show All. The Storm Control Table opens: Update with your book title 111
  • Dell PowerConnect 2848 | User's Guide - Page 112
    ... be a LAG member. IP interfaces are not configured on the port. GVRP is not enabled on the port. The port is not a VLAN member. Only one destination port can be defined. The following restrictions apply to ports configured to be destination ports: Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 113
    ... to be source ports Source Ports cannot be a LAG member. Ports cannot be configured as a destination port. All packets are transmitted tagged from the destination port. Monitored all ... from the Source Port drop-down menu. 5 Define the Type field. Update with your book title 113
  • Dell PowerConnect 2848 | User's Guide - Page 114
    ... Dynamic Address Table can be sorted by interface, VLAN, and interface type. MAC addresses ... any port are flooded to all ports of the relevant VLAN. In order to prevent the bridging table from overflowing, ...table, including the interface type, MAC addresses, VLAN, and table sorting. Packets forwarded ...
  • Dell PowerConnect 2848 | User's Guide - Page 115
    ...• • MAC Address - Specifies the MAC address for which the table is queried. VLAN ID - Specifies the VLAN ID for which the table is queried. Address Table Sort Key ...Aging Time field. 3 Click Apply Changes. The aging time is modified, and the device is updated. 115 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 116
    ... Address Table. Entries can be queried by Port, MAC Address, or VLAN ID. 3 Click Query. The Dynamic Address Table is queried. ... Key drop-down menu, select whether to sort addresses by address, VLAN ID, or interface. 3 Click Query. The Dynamic Address Table is sorted. Configuring the Spanning Tree ...
  • Dell PowerConnect 2848 | User's Guide - Page 117
    Figure 7-16. STP Global Settings • Spanning Tree State - Enables or disables Spanning Tree ... device. • BPDU Handling - Determines how BPDU packets are managed when STP is disabled on the port/ device. BPDUs ... 1 through 200000000 range for port path costs. Update with your book title 117
  • Dell PowerConnect 2848 | User's Guide - Page 118
    ... a priority. After exchanging BPDUs, the switch with the lowest priority value becomes the Root Bridge.... that has elapsed since the bridge was initialized or reset, and the last topographic change occurred..... The STP parameters are modified, and the device is updated. 118 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 119
    ... properties to individual ports. To open the STP Port Settings page, click Switch→ Spanning Tree→...tree view. Figure 7-17. STP Port Settings • • • Select a Port - Port on which STP ...outside the network core from being assigned the spanning tree root. • Update with your book title 119
  • Dell PowerConnect 2848 | User's Guide - Page 120
    .... Alternate - Provides an alternate path to the root switch from the root interface. Backup - Provides a backup ... - The default path cost of the port is automatically set by the port speed and the default path ... path costs (short path costs are the default) are: 120 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 121
    ...Fast Link fields. 3 Click Apply Changes. The STP port parameters are modified, and the device is updated. Displaying the STP Port Table 1 Open the STP Port Settings page. 2 Click Show All. The STP Port Table opens. Update with your book title 121
  • Dell PowerConnect 2848 | User's Guide - Page 122
    ...Settings page contains fields for assigning STP aggregating port parameters. To open the STP LAG Settings page, click Switch→ Spanning Treeମ. tree view. Figure 7-18. STP LAG Settings • • • Select a LAG — The user-defined LAG. For more information, see "Defining LAG Membership" on page 134...
  • Dell PowerConnect 2848 | User's Guide - Page 123
    ... cannot be used to forward traffic or learn MAC addresses. Listening - The LAG is in the listening mode and cannot forward traffic or learn MAC ...Forward Transitions - The number of times the LAG State has changed from the Blocking state to a Forwarding state. Update with your book title 123
  • Dell PowerConnect 2848 | User's Guide - Page 124
    ... a LAG drop-down menu. 3 Modify the fields as desired. 4 Click Apply Changes. The STP LAG parameters are modified, and the device is updated. Configuring Rapid Spanning Tree While Classic Spanning Tree guarantees preventing L2 forwarding loops in a ...
  • Dell PowerConnect 2848 | User's Guide - Page 125
    ... packets to root device. Designated - The port or LAG via which the designated device is attached to... is enabled or disabled for the port or LAG. If Fast Link is enabled for a port, the port is automatically ... - Enables the device to establish point-to-point links. 125 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 126
    ... software rather than defining a hardware solution. VLANs combine user stations and network devices into a...network traffic to flow more efficiently within subgroups. VLANs managed through software reduces the amount of ...the VLAN. The device supports 64 VLANs. All ports must have a defined PVID. If no ...
  • Dell PowerConnect 2848 | User's Guide - Page 127
    ...VLAN information according to VLAN ID or VLAN name. VLAN Name - The user-defined VLAN name. Unauthorized Users - Enables or disables unauthorized users from accessing a VLAN. Remove VLAN - When selected, ... page. 2 Click Add. The Create New VLAN page opens. Update with your book title 127...
  • Dell PowerConnect 2848 | User's Guide - Page 128
    ... membership information is modified, and the device is updated. Deleting VLAN Membership Groups 1 Open ... Apply Changes. The selected VLAN is deleted, and the device is updated. VLAN Port Membership ... by the interface are tagged. The packets contain VLAN information. Update with your book title 128
  • Dell PowerConnect 2848 | User's Guide - Page 129
    ... LAGs. Ports which are LAG members are not displayed in the VLAN Port Membership Table. Assigning ... VLAN group, and the device is updated. Deleting a VLAN 1 Open the VLAN Membership page. 2 Click the...Click Apply Changes. The selected VLAN is deleted, and the device is updated. Update with your book ...
  • Dell PowerConnect 2848 | User's Guide - Page 130
    ... VLAN Ports Settings The VLAN Port Settings page contains fields for managing ports that are part of a VLAN. The port default VLAN ID (PVID) is configured on the VLAN Port Settings page. All untagged packets arriving to the device are tagged ...
  • Dell PowerConnect 2848 | User's Guide - Page 131
    ... 7-23. VLAN Port Table Defining VLAN LAG Settings The VLAN LAG Setting page provides parameters for managing LAGs that are part of a VLAN. VLANs can either be composed of individual ... the LAGs ID specified by the PVID. To open the VLAN LAG Setting page, click Switch→ VLAN→ LAG ...
  • Dell PowerConnect 2848 | User's Guide - Page 132
    Figure 7-24. VLAN LAG Setting • • LAG - The LAG number included in the VLAN. PVID - Assigns a ...the page. 3 Click Apply Changes. The VLAN LAG parameters are defined, and the device is updated. Displaying the ... page. 2 Click Show All. The VLAN LAG Table opens. 132 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 133
    ... operate at the same speed. The device provides LAG Load Balancing based on both source MAC ...link member. The hash function statistically load-balances the aggregated link members. The device considers ...Aggregation page, click Switch→ Link Aggregation in the tree view. Update with your book title ...
  • Dell PowerConnect 2848 | User's Guide - Page 134
    ... 3 Click Apply Changes. The port is added to the LAG, and the device is updated. Multicast Forwarding Support Multicast forwarding allows a single packet to be forwarded ...the Multicast Support page, click Switch→ Multicast Support in the tree view. 134 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 135
    Defining Multicast Global Parameters Layer 2 switching forwards Multicast packets to all relevant VLAN ports by default, treating the packet as a ...may receive irrelevant frames only needed by a subset of the ports of that VLAN. Multicast forwarding filters enable forwarding of Layer ...
  • Dell PowerConnect 2848 | User's Guide - Page 136
    ...in the tree view. Figure 7-27. Bridge Multicast Group • • • VLAN ID - Identifies a VLAN and contains information about the Multicast group ... Identifies the Multicast group MAC address/IP address. Remove - When selected, removes a Bridge Multicast address. 136 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 137
    ...the Current Row. The following table contains the IGMP port and LAG members management settings: Blank The port is not attached to a Multicast group.... page opens: Figure 7-28. Add Bridge Multicast Group 3 Define the VLAN ID and New Bridge Multicast Address fields. Update with your book title 137
  • Dell PowerConnect 2848 | User's Guide - Page 138
    .... Defining Ports to Receive Multicast Service 1 Open the Bridge Multicast Group page. 2 Define the VLAN ID and the... Assigning LAGs to Receive Multicast Service 1 Open the Bridge Multicast Group page. 2 Define the VLAN ID and the Bridge Multicast Address fields. 3 Toggle the LAG to S to join the LAG...
  • Dell PowerConnect 2848 | User's Guide - Page 139
    Figure 7-29. Bridge Multicast Forward All • • • VLAN ID - Identifies a VLAN. Ports - Ports that can be added to a Multicast service. LAGs - LAGs that can be added ... the settings for managing router and port settings. Port Control F S Blank Definition The port/LAG is excluded ...
  • Dell PowerConnect 2848 | User's Guide - Page 140
    ... a Port to a Multicast Router or Switch 1 Open Bridge Multicast Forward All page. 2 Define the VLAN ID field. 3 Select a port ... a LAG to a Multicast Router or Switch 1 Open Bridge Multicast Forward All page. 2 Define the VLAN ID field. 3 Select a port in the LAGs table, and assign the LAG a value. ...
  • Dell PowerConnect 2848 | User's Guide - Page 141
    ... Snooping Status - Enables or disables IGMP snooping on the VLAN. Auto Learn - Enables or disables Auto ... received before the entry is aged out. User-defined enables a user-definable timeout period, ... immediate timeout period. The default timeout is 10 seconds. Update with your book title 141
  • Dell PowerConnect 2848 | User's Guide - Page 142
    Enabling IGMP Snooping on the Device 1 Open the IGMP Snooping page. 2 Select the VLAN ID for the device on which IGMP snooping needs to be enabled. 3 Select Enable in the ... Snooping. 2 Click Show All. The IGMP Snooping Table opens. Figure 7-31. IGMP Snooping Table 142 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 143
    8 Viewing Statistics The Statistic pages contains links to device information for RMON, and CPU utilization. Update with your book title 143
  • Dell PowerConnect 2848 | User's Guide - Page 144
    Viewing RMON Statistics Remote Monitoring (RMON) contains links for viewing network information from a remote location. To open the RMON page, click Statistics...Group page, click Statistics/RMON→ RMON→ Statistics in the tree view. Figure 8-1. RMON Statistics Group 144 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 145
    Interface - Specifies the port or LAG for which statistics are displayed. Refresh Rate - Amount of time .... Viewing Charts The Chart page contains links for displaying statistics in a chart form. To open the page, click Statistics→ Charts in the tree view. Update with your book title 145
  • Dell PowerConnect 2848 | User's Guide - Page 146
    ... CPU Utilization page, click Statistics/RMON→ Charts→ CPU Utilization in the tree view. Figure 8-2. CPU Utilization The CPU Utilization page contains the following information: • Refresh Rate - Amount of time that passes before the statistics are refreshed. 146 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 147
    ... packets matching the user-defined specifications are classified together. Action - Defines traffic management where packets ..., and packet field values such as VLAN priority (VPT) and DSCP (DiffServ ... to one of the output queues. VLAN Priority Tag to queue assignments are user-definable. The table ...
  • Dell PowerConnect 2848 | User's Guide - Page 148
    ...mapping is enabled on a per-system basis. CoS Services After packets are assigned to a specific queue, CoS services can be assigned to the queue(s). Output queues are configured with a scheduling scheme ... effort traffic is always assigned to the first queue. 148 Update with your book title...
  • Dell PowerConnect 2848 | User's Guide - Page 149
    .... Figure 9-1. CoS Settings • • Cos Mode - Enables or disables managing network traffic using Quality of Service. Trust Mode - Determines which ...) - The output queue assignment is determined by the IEEE802.1p VLAN priority tag (VPT) or by the default VPT assigned to a...
  • Dell PowerConnect 2848 | User's Guide - Page 150
    ... field. The CoS tag values are 0-7. The default value is 0. Assigning QoS/CoS settings for an interface: 1 Open the Interface Settings page. 2 Select ...are assigned to the interface. Displaying the QoS Interface Settings Table: 1 Open the Interface Settings page. 150 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 151
    2 Click Show All. The QoS Interface Settings Table page opens: Figure 9-3. QoS Interface Settings Table Defining Queue Settings The QoS Queue Settings page contains fields for configuring the scheduling method by which the queues are maintained. To open the QoS Queue Settings page click ...
  • Dell PowerConnect 2848 | User's Guide - Page 152
    ... percentage of each queue. Defining the Queue Settings When Strict Priority and Weighted Round... from the queues with the highest priority. 1 Open the QoS Queue Settings page. 2 Define the fields. 3 Click... Changes. The queue settings are defined, and the device is updated. 152 Update with your book...
  • Dell PowerConnect 2848 | User's Guide - Page 153
    ... Table page contains fields for classifying CoS settings to traffic queues. To open the CoS to Queue ... traffic priority queues are supported. Restore Defaults - Restores the device factory defaults for mapping ... value is mapped to a queue, and the device is updated. Update with your book title 153
  • Dell PowerConnect 2848 | User's Guide - Page 154
    ... for defining output queue to specific DSCP fields. For the list of the DSCP default queue settings, see "DSCP to Queue Mapping Table Default Values" on page 148. To ... The DSCP is overwritten, and the value is assigned to a forwarding queue. Restoring default values: 154 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 155
    1 Open the DSCP to Queue page. 2 Check the Restore Defaults checkbox. 3 Click Apply Changes. The default values are restored. Update with your book title 155
  • Dell PowerConnect 2848 | User's Guide - Page 156
    156 Update with your book title
  • Dell PowerConnect 2848 | User's Guide - Page 157
    ..., the current user is logged off and the new user is logged in. Telnet Connection Telnet is a terminal emulation TCP/IP protocol. ASCII terminals can be virtually ...a telnet session. To start a Telnet session: 1 Select Start > Run. The Run window opens. Dell PowerConnect 28xx Systems User Guide 157
  • Dell PowerConnect 2848 | User's Guide - Page 158
    ... commands which require subcommands have another level called the Subinterface Configuration mode. A password is not required. User EXEC Mode After logging into the device, .... To list the user EXEC commands, enter a question mark at the command prompt. 158 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 159
    ... accessing privileged EXEC mode and then returning to the User EXEC mode: console>enable Enter Password: ****** console# console#disable console> Use the ... Configuration mode to Privileged EXEC mode, type the exit command or use the command. Dell PowerConnect 28xx Systems User Guide 159
  • Dell PowerConnect 2848 | User's Guide - Page 160
    ... Port Channel Mode The Port Channel mode contains commands for configuring Link Aggregation Groups (LAG). The following is an example of the Port Channel mode prompt: Console (config)# interface port-channel 1 Console (config-if)# 160 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 161
    ... file, represent the active image file. If destination file, represent the nonactive image file. Boot file. Source or destination URL for a TFTP network server. ... copies or files. You can copy a remote file to null to determine its size. xmodem: null: Dell PowerConnect 28xx Systems User Guide 161
  • Dell PowerConnect 2848 | User's Guide - Page 162
    ...row typically mean that the copy process may fail. . Command: debug-mode To switch to debug mode, use the debug-mode command in Privileged EXEC mode. debug...mode Syntax Description This command has no arguments or keywords. Command Mode Privileged EXEC 162 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 163
    ...no arguments or key words Command Mode All configuration modes Default value This command has no default setting. Example Console(config-if)# end Console#... in any configuration mode. exit Syntax Description This command has no arguments or key words Dell PowerConnect 28xx Systems User Guide 163
  • Dell PowerConnect 2848 | User's Guide - Page 164
    Command Mode All configuration modes Default value This command has no default setting. Examples Console(config-if)# exit Console(config)# exit Console#... Syntax Description This command has no arguments or key words Command Mode All command modes. 164 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 165
    .... To configure a port-channel type and enter port-channel configuration mode, use the interface portinterface port-channel port-channel-number ... returns an error on one of the interfaces, it will not stop the execution of the command on other interfaces. Dell PowerConnect 28xx Systems User Guide 165
  • Dell PowerConnect 2848 | User's Guide - Page 166
    ...interface port-channel 1 Console (config-if)# Command: interface vlan To configure a vlan type and enter interface configuration mode, use the...ip address ip-address Syntax Description • ip-address - The IP address to be assigned to the interface. 166 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 167
    ...-gateway To define a default gateway (router), use the ip default-gateway global configuration command. To remove the default gateway use the no form of...] [count packet_count] [timeout time_out] Syntax Description • ip-address - IP address to ping. Dell PowerConnect 28xx Systems User Guide 167
  • Dell PowerConnect 2848 | User's Guide - Page 168
    ... gateway for this destination indicates that the destination is unreachable. Network or host unreachable-The switch found no corresponding entry in the route table. Examples Console> ... icmp_seq=2. time=8 ms 64 bytes from 10.1.1.1: icmp_seq=3. time=7 ms 168 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 169
    ... value This command has no default setting. Command: show tech-support command To display system and configuration information you can provide to the Technical Assistance Center when reporting a problem, use the show tech-support command. Dell PowerConnect 28xx Systems User Guide 169
  • Dell PowerConnect 2848 | User's Guide - Page 170
    ... mode show ip interface show interfaces configuration show interfaces status show interfaces port-channel show vlan show interfaces switchport show spanning tree show bridge multicast address-table show ip igmp snooping groups show dot1x show dot1x users 170 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 171
    show interfaces counters show users show sessions show logging file show logging If you specify the memory keyword, the show tech-support ... 1 - 20 chars ip-address - Valid IP address Default No community is defined Command Mode Global configuration Dell PowerConnect 28xx Systems User Guide 171
  • Dell PowerConnect 2848 | User's Guide - Page 172
    ..., use the username command in global configuration mode. Use the no form to remove a user name. username name [password password] [level level] [encrypted] no... modes Global Configuration Example Console (config)# username bob password lee privilege 15 172 Dell PowerConnect 28xx Systems User Guide
  • Dell PowerConnect 2848 | User's Guide - Page 173
    ... by which user access is granted to the system. Access Profiles Allows network managers to define ... for accessing the device. Access to management functions can be limited to user groups, which are defined ... Tag Specifies the user-defined device reference. Authentication Profiles Sets of rules which ...
  • Dell PowerConnect 2848 | User's Guide - Page 174
    ... about broadcast storms, see "Configuring Load Balancing". C CDB Bootstrap Protocol. Enables a workstation to discover its IP address, an IP address of ... protocol independent. Bridges operate at Layer 1 and Layer 2 levels. Broadcast Domain Devices sets that receive broadcast frames ...
  • Dell PowerConnect 2848 | User's Guide - Page 175
    ...during the RADIUS server authentication. When a user is authenticated by the RADIUS server, the user is automatically joined to the VLAN configured on the RADIUS server. E Central Processing Unit. The part of a computer that processes information. CPUs are composed of...
  • Dell PowerConnect 2848 | User's Guide - Page 176
    ... 10/100 Mbps Ethernet standards. GVRP GARP VLAN Registration Protocol. Registers client stations into a VLANs. H FFT Fast Forward Table. Provides information about forwarding routes. If a ... a known route, the CPU forwards the packet and updates the FFT. FIFO First In First Out. A ...
  • Dell PowerConnect 2848 | User's Guide - Page 177
    ...Frames reduce overhead, lower processing time, and ensures fewer interrupts. L LAG Link Aggregated Group. Aggregates ports or VLANs into a single virtual port or VLAN. For more information on LAGs, see Defining LAG Membership. The system image ...
  • Dell PowerConnect 2848 | User's Guide - Page 178
    Load Balancing Enables the even distribution of data and/or processing packets across available network resources. For example, load balancing may distribute the incoming packets evenly to... (MDIX). A cable used for hubs and switches. MIB Management Information Base. MIBs contain information ...
  • Dell PowerConnect 2848 | User's Guide - Page 179
    ... transmission in packet switched systems. PDU QoS Quality of Service. QoS allows network managers to decide how and what network traffic ...in a layer protocol consisting of protocol control information and layer user data. PING Packet Internet Groper. Verifies if a specific IP address is available....
  • Dell PowerConnect 2848 | User's Guide - Page 180
    ...Mask Used to mask all or part of an IP address used in a subnet address. Switch Filters and forwards packets between LAN segments. Switches support any packet protocol type. ... access to applications. SNMP Simple Network Management Protocol. Manages LANs. SNMP based software communicates ...
  • Dell PowerConnect 2848 | User's Guide - Page 181
    ... message sent by the SNMP that indicates that system event has occurred. Trunking Link Aggregation. Optimizes port usage by linking a group of ports together to form a single trunk (aggregated groups). U UDP User Data Protocol. Transmits packets but does not ...
  • Dell PowerConnect 2848 | User's Guide - Page 182
    182 Glossary
  • Dell PowerConnect 2848 | User's Guide - Page 183
    ... 150 Fast link, 119 File Transfer Protocol, 176 Filtering, 130, 132, 134 Firmware, 81 Flow Control, 36 FTP, 176..., 175 Dynamic Address List, 115 Dynamic VLAN Assignment, 97 G GARP, 176 GARP VLAN Registration Protocol, 176 GBIC, 176 General Attributes Registration Protocol, 176 GRE, ...
  • Dell PowerConnect 2848 | User's Guide - Page 184
    ... 138 Port LEDs, 22 Ports, 55, 103 PVID, 130, 132 Q QoS, 150, 179 Quality of Service, 147, 179 Queue,...Protocol, 180 RDP, 179 Remote Authentication DialIn User Service, 179 Reset, 62-64 RMON, 144, 179... security, 95 L L2TP, 177 LAG, 106, 177 LAGs, 138 Local User Database, 69 Loops, 116 ...
  • Dell PowerConnect 2848 | User's Guide - Page 185
    ... TFTP, 181 Time Domain Reflectometry, 65 Tree view, 53 Trivial File Transfer Protocol, 181 Trunk Configuration Page, 106 Trust, 150 Web management system icons, 55 Weighted ...interface, 53 Uploading files, 82 User Data Protocol, 181 V Virtual Local Area Networks, 181 VLAN, 126, 130, ...
  • Dell PowerConnect 2848 | User's Guide - Page 186
    186 Index



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Dell PowerConnect 2848 Manual