HP 12500 Routing Switch Series
IRF
Part number: 5998-3408
Software version: 12500-CMW710-R7128
Document version: 6W710-20121130

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   Summary of Contents for HP 12500 SERIES

  • Page 1: Configuration Guide

    HP 12500 Routing Switch Series Configuration Guide Part number: 5998-3408 Software version: 12500-CMW710-R7128 Document version: 6W710-20121130...

  • Page 2

    The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.

  • Page 3: Table Of Contents

    Contents IRF overview ································································································································································································· 1   Hardware compatibility ·············································································································································································· 1   IRF benefits ····································································································································································································· 1   Application scenario ···················································································································································································· 1   Network topologies ····················································································································································································· 2   Basic concepts ······························································································································································································· 2   Operating mode ················································································································································································· 4   IRF member roles ··············································································································································································· 4  ...

  • Page 4: Table Of Contents

    Configuring a member device description ···························································································································· 25   Configuring IRF bridge MAC persistence ······························································································································· 25   Enabling software auto-update for system software image synchronization ························································· 26   Setting the IRF link down report delay ···································································································································· 27   Enabling IRF link failure detection and auto-recovery ······································································································ 28  ...

  • Page 5: Irf Overview

    This book describes IRF concepts and guides you through the IRF setup procedure. Hardware compatibility An HP 12500 switch can form an IRF fabric only with devices in the same series. IRF benefits IRF delivers the following benefits: Simplified topology and easy management—An IRF fabric appears as one node and is...

  • Page 6: Network Topologies

    Figure 1 IRF application scenario IP network IP network Standby Master Equal to IRF link Network topologies An IRF fabric can use a daisy chain topology or a ring topology. Full mesh topology is not supported. For information about connecting IRF member devices, see "Connecting IRF physical ports."...

  • Page 7

    Figure 2 Two-chassis IRF fabric implementation schematic diagram In this figure, Device A and Device B form a two-chassis IRF fabric that has four MPUs (one active and three standbys) and two times the number of interface cards that a single device provides. The IRF fabric manages the physical and software resources of Device A and Device B in a centralized manner.

  • Page 8: Operating Mode

    Figure 3 Four-chassis IRF fabric implementation schematic diagram Operating mode The device operates in one of the following modes: Standalone mode—The device cannot form an IRF fabric with other devices. • IRF mode—The device can form an IRF fabric with other devices. •...

  • Page 9: Irf Member Id

    automatically elect a new master from among them to take over. For more information about master election, see "Master election." While backing up the master, all standby devices process and forward traffic independently. IRF member ID An IRF fabric uses member IDs to uniquely identify and manage its members. If two devices have the same IRF member ID, they cannot form an IRF fabric.

  • Page 10: Irf Domain Id

    In IRF mode, the IRF ports are named IRF-port n/1 and IRF-port n/2, where n is the member ID of the device. The two IRF ports are referred to as "IRF-port 1" and "IRF-port 2" in this book for simplicity. To use an IRF port, you must bind at least one physical port to it.

  • Page 11: Irf Split

    IRF split IRF split occurs when an IRF fabric breaks up into two or more IRF fabrics because of IRF link failures, as shown in Figure 5. The split IRF fabrics operate with the same IP address and cause routing and forwarding problems on the network. To avoid a card removal causing an IRF split, bind physical ports on different cards to an IRF port.

  • Page 12: Irf Multi-active Detection

    Two members are considered starting up at the same time if their startup time difference is equal to or less than 10 minutes. For these members, the next tiebreaker applies. Member with the lowest member ID. When master election is complete, the devices that fail the master election must reboot to rejoin the IRF fabric that wins the election.

  • Page 13: Lacp Mad

    Figure 7. In addition, the intermediate device must be an HP device that supports extended LACP for MAD. The IRF member devices send extended LACPDUs with TLVs that convey the domain ID and the active ID of the IRF fabric. The intermediate device transparently forwards the extended LACPDUs...

  • Page 14

    Figure 7 LACP MAD application scenario BFD MAD BFD MAD can work with or without intermediate devices. Figure 8 shows a typical BFD MAD application scenario. To use BFD MAD: Set up dedicated BFD MAD link between each pair of IRF members or between each IRF •...

  • Page 15

    Figure 8 BFD MAD application scenario Customer premise network Device Link aggregation BFD MAD link VLAN 2 VLAN 2 192.168.1.2/24 192.168.1.3/24 IRF link Standby Master Internet ARP MAD ARP MAD detects multi-active collisions by using extended ARP packets that convey the IRF domain ID and the active ID.

  • Page 16

    Figure 9 ARP MAD application scenario Each IRF member compares the domain ID and the active ID in incoming extended ARP packets with its domain ID and active ID: If the domain IDs are different, the extended ARP packet is from a different IRF fabric, and the •...

  • Page 17: Configuring Irf

    MPUs of a member device. If a member device has two MPUs, the MPUs must be the same model. • Both fiber and copper Ethernet ports can be used for IRF connection. HP recommends using • 10-GE fiber ports for high performance.

  • Page 18: Other Configuration Guidelines

    Save any configuration you have made to the startup configuration file before rebooting the • IRF member devices. Setup and configuration task list HP recommends the following IRF fabric setup and configuration procedure: Setup and configuration procedure Remarks (Required.) Planning the IRF fabric setup...

  • Page 19: Planning The Irf Fabric Setup

    Setup and configuration procedure Remarks (Required.) Preconfiguring IRF member devices in standalone mode: Perform these tasks on each member Assigning a member ID to each IRF member device device before the IRF mode is enabled. Specifying a priority for each member device Binding physical ports to IRF ports (Optional.) Enabling enhanced IRF mode in standalone...

  • Page 20: Preconfiguring Irf Member Devices In Standalone Mode

    Member ID and priority assignment scheme • Fabric topology and cabling scheme • For more information about hardware and cabling, see the installation guide for the device. Preconfiguring IRF member devices in standalone mode Perform the tasks in this section on every IRF member device. These settings take effect on each member device after their operating mode changes to IRF.

  • Page 21: Enabling Enhanced Irf Mode In Standalone Mode

    12 physical ports to the IRF the IRF port. interface-number port. HP recommends not creating MDCs on the device in standalone mode. Verify that the physical port has been bound to the IRF display irf configuration port.

  • Page 22: Saving Configuration To The Next-startup Configuration File

    Step Command Remarks Enter system view. system-view By default, enhanced IRF mode is disabled. After the enhanced IRF mode is enabled, you cannot create Enable enhanced IRF mode. irf mode enhanced Layer 3 Ethernet interfaces or subinterfaces or Layer 3 aggregate interfaces or subinterfaces.

  • Page 23: Setting The Operating Mode To Irf Mode

    topology. Instead, the IRF fabric changes to a daisy chain topology without interrupting network services. To use the ring topology, you must have at least three member devices. Figure 11 Daisy chain topology versus ring topology If two IRF member devices are far away from each other (for example, if they are in different cities), you can use a relay device, such as a Layer 2 switch, to connect them, as shown in Figure Figure 12 Daisy chain topology with a relay...

  • Page 24: Accessing The Irf Fabric

    Step Command Remarks Enter system view. system-view Set the operating mode to The default operating mode is chassis convert mode irf IRF mode. standalone mode. After you change the operating mode, the device automatically reboots to validate the change. During the reboot, you may choose to have the system automatically convert the startup configuration file to prevent some slot- or interface-related configurations from becoming invalid.

  • Page 25: Changing The Member Id Of A Device

    receives an LACP MAD packet, it looks at the domain ID in the packet to see whether the packet is from the local IRF fabric or from a different IRF fabric. Then, the device can handle the packet correctly. Figure 13 A network that comprises two IRF domains Core network IRF 1 (domain 10) Device A...

  • Page 26: Changing The Priority Of A Member Device

    Step Command Remarks Enter system view. system-view Change the member ID of irf member member-id renumber a member device. new-member-id Save the running save [ safely ] [ force ] configuration. The chassis-number must be the same as the member-id Reboot the member reboot chassis chassis-number specified in the irf member...

  • Page 27

    Step Command Remarks • Enter interface range view: Approach 1: interface range { interface-type interface-number [ to interface-type To shut down a range of interface-number ] } &<1-5> physical IRF ports, enter Enter Ethernet interface Approach 2: interface range view. view or interface range interface range name name view.

  • Page 28: Enabling Enhanced Irf Mode In Irf Mode

    Step Command Remarks To avoid configuration loss, save the running configuration Save the running to the main next startup save [ safely ] [ force ] configuration. configuration file before activating the IRF port configuration. Activate the configuration irf-port-configuration active on the IRF port.

  • Page 29: Enabling Auto Reboot For Irf Fabric Merge

    Step Command Remarks By default, enhanced IRF mode is disabled. After the enhanced IRF mode is enabled, you cannot create Enable enhanced IRF mode. irf mode enhanced Layer 3 Ethernet interfaces or subinterfaces or Layer 3 aggregate interfaces or subinterfaces. Enabling auto reboot for IRF fabric merge When merging two IRF fabrics, you must reboot the member devices in the IRF fabric that has been defeated in the master election.

  • Page 30: Enabling Software Auto-update For System Software Image Synchronization

    Depending on your network condition, enable the IRF fabric to preserve or change its bridge MAC address after the master leaves. Available options include: irf mac-address persistent timer—Bridge MAC address of the IRF fabric persists for 6 minutes • after the master leaves. If the master does not come back before the timer expires, the IRF fabric uses the bridge MAC address of the new master as its bridge MAC address.

  • Page 31: Setting The Irf Link Down Report Delay

    If software auto-update is disabled, you must manually update the device with the software images of the master before adding it to the IRF fabric. Configuration prerequisites Before you use the software auto-update function, make sure: The device you are adding to the IRF fabric is compatible with the software version running on •...

  • Page 32: Enabling Irf Link Failure Detection And Auto-recovery

    Enabling IRF link failure detection and auto-recovery IRF link failure detection and auto-recovery automatically check the health of IRF links and automatically make link recovery attempts when a failed IRF link is detected. The two functions are helpful for IRF fabrics that have more than one IRF link between each two member devices. To enable IRF link failure detection and auto-recovery: Step Command...

  • Page 33

    Configuring LACP MAD When you use LACP MAD, follow these guidelines: The intermediate device must be an HP device that support extended LACP for MAD. • If the intermediate device is in an IRF fabric, assign this fabric a different domain ID than the •...

  • Page 34

    To configure LACP MAD: Step Command Remarks Enter system view. system-view The default IRF domain ID is 0. You can change the IRF Assign a domain ID to the irf domain domain-id domain ID only in the Admin IRF fabric. MDC.

  • Page 35

    Step Command Remarks Multichassis link aggregation is Assign the Ethernet port or allowed. the range of Ethernet ports port link-aggregation group to the specified number Perform this step also on the aggregation group. intermediate device. Configuring BFD MAD When you configure BFD MAD, follow these guidelines: You cannot enable BFD MAD on VLAN-interface 1.

  • Page 36

    Step Command Remarks • Enter interface range view: Approach 1: interface range { interface-type interface-number [ to interface-type To assign a range of ports to interface-number ] } &<1-5> the BFD MAD VLAN, enter Enter Ethernet interface interface range view. Approach 2: view or interface range interface range name name...

  • Page 37

    Use a VLAN dedicated to ARP MAD. • If an intermediate device is used, do the following: • Run the spanning tree feature between the IRF fabric and the intermediate device. Enable the IRF fabric to change its bridge MAC address as soon as the master leaves. Create an ARP MAD VLAN and assign the ports on the ARP MAD links to the VLAN.

  • Page 38

    Step Command Remarks • Assign the port to the VLAN as an access port: Choose one command port access vlan vlan-id depending on the port type. • Assign the port to the VLAN as a Assign the port or the trunk port: ARP MAD has no requirement range of ports to the ARP...

  • Page 39

    Step Command Remarks By default, when an IRF fabric Configure a port to not transits to the Recovery state, shut down when the IRF mad exclude interface interface-type all its network ports except the fabric transits to the interface-number IRF physical ports and console Recovery state.

  • Page 40: Fast-restoring Irf Configuration For A One-mpu Member

    The recovery procedure differs depends on whether a two-chassis device is available. HP recommends performing fast IRF configuration restoration in IRF mode. This section assumes that the failed member device is Device A. If a two-MPU member device (Device B in this example) is available, use the following procedure:...

  • Page 41: Displaying And Maintaining An Irf Fabric

    Step Command • In IRF mode: irf chassis chassis-number slot slot-number Change Device B's member ID on the standby member member-id MPU to be the same as that of Device A. • In standalone mode: irf slot slot-number member member-id Remove the damaged MPU from Device A, and insert Device B's standby MPU into Device A.

  • Page 42: Configuration Examples

    Set up a two-chassis IRF fabric at the access layer of the enterprise network in Figure 16. Configure LACP MAD in the IRF fabric, because the IRF fabric has a multichassis aggregate link to Device C, an HP device that supports extended LACP. Figure 16 Network diagram Configuration procedure IMPORTANT: For two neighboring IRF members, IRF links must be bound to IRF-port 1 on one member and to IRF-port 2 on the other.

  • Page 43

    [Sysname-irf-port2] quit [Sysname] interface ten-gigabitethernet 3/0/1 [Sysname-Ten-GigabitEthernet3/0/1] undo shutdown [Sysname-Ten-GigabitEthernet3/0/1] quit # Save the configuration. [Sysname] quit <Sysname> save # Enable IRF mode. <Sysname> system-view [Sysname] chassis convert mode irf The device will switch to IRF mode and reboot. You are recommended to save the current running configuration and specify the configuration file for the next startup.

  • Page 44

    #May 7 09:13:42:388 2010 HP STM/4/LINK STATUS CHANGE: Trap 1.3.6.1.4.1.2011.10.2.91.6.0.1<HPStackPortLinkStatusChange>: Physical index of the member is 2, member ID is 1. Link status of the IRF port with port index 1 and...

  • Page 45

    BAGG1 becomes ACTIVE. %May 7 09:23:16:370 2010 HP IFNET/3/LINK_UPDOWN: Bridge-Aggregation2 link status is %May 7 09:23:16:381 2010 HP IFNET/3/LINK_UPDOWN: Vlan-interface1 link status is UP. %May 7 09:23:16:391 2010 HP IFNET/5/LINEPROTO_UPDOWN: Line protocol on the interface Vlan-interface1 is UP.

  • Page 46: Bfd Mad-enabled Irf Configuration Example For A Two-chassis Irf Fabric

    BFD MAD-enabled IRF configuration example for a two-chassis IRF fabric Network requirements Set up an IRF fabric at the distribution layer of the network in Figure 17. Configure BFD MAD in the IRF fabric and set up BFD MAD links between the member devices. Disable the spanning tree feature on the ports used for BFD MAD, because the two features conflict with each other.

  • Page 47

    # Specify the priority of Device A as 10 to make sure it is elected as the master when the IRF fabric is established. [DeviceA] irf priority 10 # Save the configuration. [Sysname] quit <Sysname> save # Enable IRF mode. <Sysname>...

  • Page 48

    Start to check configuration with next startup configuration file, please wait..DONE! This command will reboot the device. Continue? [Y/N]:y #May 6 15:31:09:724 2010 HP DEVM/1/REBOOT: Reboot device by command. %May 6 15:31:09:734 2010 HP DEVM/5/SYSTEM_REBOOT: System is rebooting now.

  • Page 49: Arp Mad-enabled Irf Configuration Example For A Two-chassis Irf Fabric

    # After the IRF merge is complete, verify that the IRF fabric is recovered. <Sysname> display irf topology Topology Info ------------------------------------------------------------------------- IRF-Port1 IRF-Port2 MemberID Link neighbor Link neighbor Belong To DOWN 00e0-fc0f-8c02 00e0-fc0f-8c02 ARP MAD-enabled IRF configuration example for a two-chassis IRF fabric Network requirements Set up a two-chassis IRF fabric at the distribution layer of the enterprise network in...

  • Page 50

    [Sysname-irf-port2] port group interface ten-gigabitethernet 3/0/1 [Sysname-irf-port2] quit [Sysname] interface ten-gigabitethernet 3/0/1 [Sysname-Ten-GigabitEthernet3/0/1] undo shutdown [Sysname-Ten-GigabitEthernet3/0/1] quit # Save the configuration. [Sysname] quit <Sysname> save # Enable IRF mode. <Sysname> system-view [Sysname] chassis convert mode irf The device will switch to IRF mode and reboot. You are recommended to save the current running configuration and specify the configuration file for the next startup.

  • Page 51: Enhanced Irf Mode Configuration Example

    Please wait... Saving the converted configuration file to the main board succeeded. Slot 1: Saving the converted configuration file succeeded. Now rebooting, please wait... Device B and Device A form an IRF after Device B reboots. Configure the IRF fabric: # Enable the spanning tree feature globally on the IRF fabric.

  • Page 52

    Figure 19 Network diagram Device E IP network XGE1/3/0/2 XGE4/3/0/2 XGE1/3/0/1 XGE2/3/0/1 XGE3/3/0/2 (IRF-port1/1) (IRF-port4/2) XGE3/3/0/1 (IRF-port1/2) (IRF-port2/1) (IRF-port3/1) (IRF-port3/2) XGE4/3/0/1 Device C Device B Device A (IRF-port4/1) XGE2/3/0/2 Device D (IRF-port2/2) The orange lines represent IRF links. The black lines represent Ethernet links. The gray circles represent aggregate links. Configuration procedure IMPORTANT: For two neighboring IRF members, IRF links must be bound to IRF-port 1 on one member and to...

  • Page 53

    [Sysname-Ten-GigabitEthernet3/0/1] quit [Sysname] irf-port 2 [Sysname-irf-port2] port group interface ten-gigabitethernet 3/0/1 [Sysname-irf-port2] quit [Sysname] interface ten-gigabitethernet 3/0/1 [Sysname-Ten-GigabitEthernet3/0/1] undo shutdown [Sysname-Ten-GigabitEthernet3/0/1] quit # Enable enhanced IRF mode. [Sysname] irf mode enhanced # Save the configuration. [Sysname] save The current configuration will be written to the device. Are you sure? [Y/N]:y Please input the file name(*.cfg)[flash:/startup.cfg] (To leave the existing filename unchanged, press the enter key): flash:/startup.cfg exists, overwrite? [Y/N]:y...

  • Page 54

    [Sysname] interface ten-gigabitethernet 3/0/2 [Sysname-Ten-GigabitEthernet3/0/2] undo shutdown [Sysname-Ten-GigabitEthernet3/0/2] quit # Enable enhanced IRF mode. [Sysname] irf mode enhanced # Save the configuration. [Sysname] save The current configuration will be written to the device. Are you sure? [Y/N]:y Please input the file name(*.cfg)[flash:/startup.cfg] (To leave the existing filename unchanged, press the enter key): flash:/startup.cfg exists, overwrite? [Y/N]:y Validating file.

  • Page 55

    [Sysname-Ten-GigabitEthernet3/0/1] undo shutdown [Sysname-Ten-GigabitEthernet3/0/1] quit # Enable enhanced IRF mode. [Sysname] irf mode enhanced # Save the configuration. [Sysname] save The current configuration will be written to the device. Are you sure? [Y/N]:y Please input the file name(*.cfg)[flash:/startup.cfg] (To leave the existing filename unchanged, press the enter key): flash:/startup.cfg exists, overwrite? [Y/N]:y Validating file.

  • Page 56: Restoring Standalone Mode

    [Sysname-Ten-GigabitEthernet3/0/2] quit # Enable enhanced IRF mode. [Sysname] irf mode enhanced # Save the configuration. [Sysname] save The current configuration will be written to the device. Are you sure? [Y/N]:y Please input the file name(*.cfg)[flash:/startup.cfg] (To leave the existing filename unchanged, press the enter key): flash:/startup.cfg exists, overwrite? [Y/N]:y Validating file.

  • Page 57

    Configuration procedure Identify the master. <IRF> display irf MemberID Slot Role Priority CPU-Mac Description Master 00e0-fc0a-15e0 DeviceA Standby 00e0-fc0f-8c02 DeviceA Standby 00e0-fc0f-15e1 DeviceB Standby 00e0-fc0f-15e2 DeviceB -------------------------------------------------- * indicates the device is the master. + indicates the device through which the user logs in. The Bridge MAC of the IRF is: 000f-e26a-58ed Auto upgrade : yes...

  • Page 58

    Saving the converted configuration file succeeded. Now rebooting, please wait... Device A automatically reboots to complete the operating mode change. Log in to Device B and change its operating mode to standalone. <IRF> system-view [IRF] undo chassis convert mode The device will switch to stand-alone mode and reboot. You are recommended to save the current running configuration and specify the configuration file for the next startup.

  • Page 59: Index

    Index accessing IRF fabric, 20 IRF member device description, 25 adding physical ports to IRF port, 22 LACP MAD-enabled IRF fabric, 38 application scenario, 1 configuring IRF member devices in IRF mode, 20 ARP MAD connecting IRF physical ports, 18 IRF application scenario, 11 detecting IRF configuration, 32, 45...

  • Page 60

    adding physical ports to IRF port, 22 IRF MPU roles, 5 binding IRF physical port to IRF port, 16 IRF network topologies, 2 IRF operating mode, 4 changing IRF member ID, 21 changing IRF member priority, 22 IRF overview, 1 configuring enhanced IRF mode, 47 IRF physical port connection, 18 IRF port, 5...

  • Page 61

    collision handling, 8 member device description, 25 configuration, 13, 14, 38 member ID, 5 member priority, 7 configuration guidelines, 13 configuration restrictions, 13 member roles, 4 configuring ARP MAD-enabled IRF fabric, 45 merge, 7 MPU restrictions, 13 configuring BFD MAD-enabled IRF fabric, 42 configuring LACP MAD-enabled IRF fabric, 38 MPU roles, 5 device member ID assignment, 16...

  • Page 62

    ARP. See ARP MAD IRF mode, 4 BFD. See BFD MAD standalone mode, 4 physical port configuring ARP MAD-enabled IRF fabric, 45 configuring BFD MAD-enabled IRF fabric, 42 adding physical ports to IRF port, 22 configuring LACP MAD-enabled IRF fabric, 38 binding to IRF port, 16 IRF physical port connection, 18 detection, 8...

  • Page 63

    configuring IRF MAD mechanisms, 28 saving configuration to next-startup configuration file, 18 configuring IRF member device description, setting configuring IRF member in IRF mode, 20 IRF link down report delay, 27 configuring LACP MAD-enabled IRF fabric, 38 IRF mode, 19 connecting IRF physical ports, 18 setting operating mode to IRF mode, 19 displaying IRF fabric, 37...

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