HP 7500 Switch Series
IRF
Part number: 5998-1865
Software version: Release 6701 and later
Document version: 6W102-20130226

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  • Page 1: Configuration Guide

    HP 7500 Switch Series Configuration Guide Part number: 5998-1865 Software version: Release 6701 and later Document version: 6W102-20130226...

  • 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   Chassis compatibility ··············································································································································· 1   Card compatibility ···················································································································································· 1   Hardware compatibility for a three-/four-chassis IRF fabric ················································································ 1   IRF benefits ········································································································································································· 1   Application scenario ························································································································································· 2  ...

  • Page 4: Table Of Contents

    BFD MAD-enabled IRF configuration example for a four-chassis IRF fabric ··················································· 45   Restoring standalone mode ·································································································································· 50   Support and other resources ····································································································································· 53   Contacting HP ································································································································································ 53   Subscription service ·············································································································································· 53   Related information ························································································································································ 53  ...

  • Page 5: Irf Overview

    IRF overview The HP Intelligent Resilient Framework (IRF) technology creates a large IRF fabric from multiple switches to provide data center class availability and scalability. IRF virtualization technology offers processing power, interaction, unified management, and uninterrupted maintenance of multiple switches.

  • Page 6: Application Scenario

    Multiple-chassis link aggregation—You can use the Ethernet link aggregation feature to aggregate • the physical links between the IRF fabric and its upstream or downstream devices across the IRF members. • Network scalability and resiliency—Processing capacity of an IRF fabric equals the total processing capacities of all the members.

  • Page 7

    Figure 2 Two-chassis IRF fabric implementation schematic diagram Device A Device B (MemberID=1) (MemberID=2) Active MPU Active MPU Standby MPU Standby MPU IRF-port 2 IRF-port 1 IRF link XGE1/3/0/1 Service XGE2/3/0/1 Service Physical IRF interface Physical IRF interface port port An IRF fabric is formed.

  • Page 8: Operating Mode

    Figure 3 Four-chassis IRF fabric implementation schematic diagram Device A Device B ( Member ID=2 ) ( Member ID=1 ) Active MPU Active MPU Standby MPU Standby MPU IRF- port1 IRF-port 2 IRF-port 2 IRF-port 1 Network Network IRF physical IRF physical interfaces interfaces...

  • Page 9: Irf Member Id

    IRF member ID An IRF fabric uses member IDs to uniquely identify and manage its members. This member ID information is included as the first part of interface numbers and file paths to uniquely identify interfaces and files in an IRF fabric. For example, after you assign a switch with member ID 2 to an IRF fabric, the name of interface GigabitEthernet 3/0/1 changes to GigabitEthernet 2/3/0/1, and the file path slot1#flash:/test.cfg changes to chassis2#slot1#flash:/test.cfg.

  • Page 10: Irf Split

    As shown in Figure 4, Switch A and Switch B form IRF fabric 1, and Switch C and Switch D form IRF fabric 2. The fabrics have LACP MAD detection links between them. When a member switch in one IRF fabric receives an extended LACP packet for MAD detection, 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.

  • Page 11: Member Priority

    Figure 6 IRF merge IRF 1 IRF 2 XGE1/3/0/1 XGE2/3/0/1 IRF link Device A Device A Device B Device B Member priority Member priority determines the possibility of a member device to be elected the master. A member with higher priority is more likely to be elected the master. The default member priority is 1.

  • Page 12: Lacp Mad

    Figure 7. In addition, the intermediate device must be an HP device that supports extended LACP for MAD. The IRF member switches 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 received from one member switch to all the other member switches: •...

  • Page 13

    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 member •...

  • Page 14

    Figure 8 BFD MAD application scenario Customer premises network Device Link aggregation BFD MAD link VLAN 2 VLAN 2 192.168.1.2/24 192.168.1.3/24 IRF link Subordinate Master Internet...

  • Page 15: Configuring Irf

    • • Use 10-GE or 40-GE ports (on MPUs or LPUs) for IRF connections. HP recommends using ports on LPUs first for IRF connections. For more information about LPUs that provide 10-GE or 40-GE ports, see HP 7500 Switch Series Installation Guide.

  • Page 16: Fips Mode Requirement

    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: Task Remarks Planning the IRF fabric setup Required.

  • Page 17: Planning The Irf Fabric Setup

    Task Remarks Login to the global active MPU is required. Accessing the IRF fabric: From the active MPU, you can log in Accessing the global active MPU of the IRF fabric to a standby MPU to execute a Accessing a standby MPU in the IRF fabric limited set of maintenance commands.

  • Page 18: Assigning A Member Id To Each Irf Member Switch

    Assigning a member ID to each IRF member switch A switch by default operates in standalone mode without an IRF member ID. You must assign it a unique IRF member ID before changing its operating mode to IRF. The member ID assigned to a switch is saved in both active and standby MPUs of the switch. If the standby MPU has a different member ID than the active MPU, for example, because of an MPU replacement, the member ID in the active MPU takes effect and is automatically updated to the standby MPU.

  • Page 19: Saving Configuration To The Next-startup Configuration File

    Configuration restrictions and guidelines WARNING! If you are using a 40-GE port on the LSQ1QGS4SC card for IRF connection, HP recommends completing the port split or combination operation before adding the switch to an IRF fabric. As of Release 6703, you can use the using tengige command or the using fortygige command to split 40-GE QSFP+ ports into 10-GE ports or recombine 10-GE ports into 40-GE ports.

  • Page 20: Connecting Physical Irf Ports

    Task Command Save the current configuration to save [ safely ] [ force ] the next-startup configuration file. Connecting physical IRF ports When you connect two neighboring IRF members, connect the physical ports of IRF-port 1 on one member to the physical ports of IRF-port 2 on the other, as shown in Figure Follow these guidelines on selecting transceiver modules and cables: Use XFP transceiver modules and fibers to connect XFP ports.

  • Page 21: Setting The Operating Mode To Irf Mode

    Figure 10 Daisy chain topology vs. ring topology Setting the operating mode to IRF mode By default, a switch is operating in standalone mode. To assign a switch to an IRF fabric, you must change its operating mode to IRF mode. Before changing to IRF mode, use the display irf configuration command to verify that a member ID has been assigned to the device.

  • Page 22: Accessing The Irf Fabric

    Accessing the IRF fabric The IRF fabric appears as one device after it is formed. You configure and manage all IRF members at the CLI of the global active MPU. All settings you made are automatically propagated to the IRF members.

  • Page 23: Configuring Irf Member Switches In Irf Mode

    Configuring IRF member switches in IRF mode After you access the global active MPU's CLI, you can perform the tasks in this section or configure features in all other feature configuration guides. Assigning an IRF domain ID to the IRF fabric This task is required for running LACP MAD between two IRF fabrics.

  • Page 24: Changing The Priority Of A Member Switch

    CAUTION: In IRF mode, an IRF member ID change can invalidate some member ID-related settings and cause data loss. Be sure you fully understand its impact on your live network. You must place a switch in standalone mode before renumbering it in one of the following two situations: •...

  • Page 25: Adding Physical Ports To An Irf Port

    Adding physical ports to an IRF port WARNING! If you are using a 40-GE port on the LSQ1QGS4SC card for IRF connection, HP recommends completing the port split or combination operation before adding the switch to an IRF fabric. As of Release 6703, you can use the using tengige command or the using fortygige command to split 40-GE QSFP+ ports into 10-GE ports or recombine 10-GE ports into 40-GE ports.

  • Page 26: Enabling Auto Reboot For Irf Fabric Merge

    Step Command Remarks Bring up the port or ports. undo shutdown Enabling auto reboot for IRF fabric merge When two IRF fabrics merge, you must reboot the member switches in the IRF fabric that fails in the master election. The auto reboot function enables the IRF fabric to automatically reboot all its member switches to complete the merge.

  • Page 27: Configuring Irf Bridge Mac Persistence

    Configuration prerequisites You have bound at least one physical port to the IRF port. Configuring the global load sharing mode Step Command Remarks Enter system view. system-view By default, the switch uses source and destination MAC addresses for Layer 2 traffic load sharing, irf-port load-sharing mode Configure the global IRF source and destination IP...

  • Page 28: Enabling Software Auto-update For System Software Image Synchronization

    undo irf mac-address persistent—Bridge MAC address of the new master replaces the original one • as soon as the old master leaves. If two IRF fabrics have the same bridge MAC address, they cannot merge. To configure the IRF bridge MAC persistence setting: Step Command Remarks...

  • Page 29: Setting The Irf Link Down Report Delay

    If your IRF fabric requires a fast irf link-delay interval delay. master/subordinate or IRF link switchover or has deployed the BFD or GR feature, HP recommends setting the delay to 0 seconds. Improving interface card availability in a four-chassis 7506 or 7506-V IRF fabric If the IRF member ID of a 7506 or 7506-V switch is 4, the card in its slot 7 by default cannot work.

  • Page 30: Configuring Mad

    Application scenario mechanism Link aggregation is used between the IRF fabric and its upstream or • Detection speed is fast. Requires an intermediate HP downstream device. LACP MAD device that supports LACP • Requires no MAD-dedicated For information about MAD packets.

  • Page 31

    Configuration Guide. 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 LACP MAD-enabled fabric to avoid false detection of IRF partition.

  • Page 32

    Step Command Remarks Return to system view. quit interface interface-type Enter Ethernet interface view. interface-number Assign the Ethernet interface Perform this step on the to the specified aggregation port link-aggregation group number intermediate device as well. group. Configuring BFD MAD When you configure BFD MAD, follow these guidelines: You cannot enable BFD MAD detection on VLAN-interface 1.

  • Page 33

    Step Command Remarks interface vlan-interface Enter VLAN interface view. interface-number By default, BFD MAD is Enable BFD MAD. mad bfd enable disabled. By default, no MAD IP address is configured on any VLAN interface. Configure a MAD IP address mad ip address ip-address { mask | for a member on the VLAN The MAD IP address must not on mask-length } member member-id...

  • Page 34

    Figure 12 Recovering the IRF fabric If the Active-state fabric has failed, for example, because of device or link failures, before the IRF link is recovered (see Figure 13), use the mad restore command on the Recovery-state fabric to change its state to Active to take over.

  • Page 35: Fast-restoring Irf Configuration For A One-mpu Member

    MPU is damaged. This section describes a fast approach to restoring IRF configuration for one-MPU member switches. NOTE: HP recommends performing fast IRF configuration restoration in IRF mode. The recovery procedure differs depends on whether a two-MPU member switch is available. This section assumes that the failed member switch is Switch A.

  • Page 36: Displaying And Maintaining An Irf Fabric

    Set up a two-chassis IRF fabric at the access layer of the enterprise network in Figure 14. Configure LACP MAD in the IRF fabric, because the IRF fabric has a multi-chassis aggregate link to Device C, an HP device that supports extended LACP.

  • Page 37

    Figure 14 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. Configure Device A: # Assign member ID 1 to Device A, create IRF-port 2, and bind Ten-GigabitEthernet 3/0/1 to the IRF port.

  • Page 38

    Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in IRF mode? [Y/N]:y Please wait... Saving the converted configuration file to the main board succeeded. Slot 1: Saving the converted configuration file succeeded. Now rebooting, please wait...

  • Page 39

    [Sysname] interface bridge-aggregation 2 [Sysname-Bridge-Aggregation2] link-aggregation mode dynamic [Sysname-Bridge-Aggregation2] mad enable You need to assign a domain ID (range: 0-4294967295) [Current domain is: 1]: The assigned domain ID is: 1 Info: MAD LACP only enable on dynamic aggregation interface. [Sysname-Bridge-Aggregation2] quit # Assign ports GigabitEthernet 1/4/0/2 and GigabitEthernet 2/4/0/2 to the aggregate interface.

  • Page 40: Bfd Mad-enabled Irf Configuration Example For A Two-chassis Irf Fabric

    #May 7 09:23:16:050 2010 IFNET/4/INTERFACE UPDOWN: Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 277872640 is Up, ifAdminStatus is 1, ifOperStatus is 1 %May 7 09:23:16:069 2010 IFNET/3/LINK_UPDOWN: GigabitEthernet2/3/0/2 link status is #May 7 09:23:16:302 2010 LAGG/1/AggPortRecoverActive: Trap 1.3.6.1.4.1.2011.5.25.25.2.4<hwAggPortActiveNotification>: Aggregation Group 1: port member 277872640 becomes ACTIVE! %May 7 09:23:16:322 2010 LAGG/5/LAGG_ACTIVE: Member port GigabitEthernet2/3/0/1 of aggregation group BAGG1 becomes ACTIVE.

  • Page 41

    Figure 15 Network diagram Configuration procedure Configure Device A: # Assign member ID 1 to Device A, create IRF-port 2, and bind Ten-GigabitEthernet 3/0/1 to the IRF port. <Sysname> system-view [Sysname] irf member 1 Info: Member ID change will take effect after the member reboots and operates in IRF mode.

  • Page 42

    [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. Continue? [Y/N]:y Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in IRF mode? [Y/N]:y Please wait...

  • Page 43

    # Create VLAN 3, and add GigabitEthernet 1/4/0/1 (located on Device A) and GigabitEthernet 2/4/0/1 (located on Device B) to VLAN 3. <Sysname> system-view [Sysname] vlan 3 [Sysname-vlan3] port gigabitethernet 1/4/0/1 gigabitethernet 2/4/0/1 [Sysname-vlan3] quit # Create VLAN-interface 3 and configure a MAD IP address for each member device on the VLAN interface.

  • Page 44: Lacp Mad-enabled Irf Configuration Example For A Four-chassis Irf Fabric

    Set up a four-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 multi-chassis aggregate link to Device E, an HP device that supports extended LACP. Figure 16 Network diagram...

  • Page 45

    [Sysname-irf-port2] port group interface ten-gigabitethernet 3/0/1 [Sysname-irf-port2] quit # Save the running 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 46

    Device B and Device A form an IRF fabric after Device B reboots. Configure Device C: # Assign member ID 3 to Device C, create IRF-port 1 and IRF-port 2, and bind them to Ten-GigabitEthernet 2/0/1 and Ten-GigabitEthernet 2/0/2, respectively. <Sysname>...

  • Page 47

    <Sysname> save # Connect Device D to Device B and Device C as shown in Figure 16. Log in to Device D. # 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 48

    CAUTION: If the intermediate switch is in an IRF fabric, you must assign this fabric a different domain ID than the LACP MAD-enabled IRF fabric. # Create a dynamic aggregate interface. <Sysname> system-view [Sysname] interface bridge-aggregation 2 [Sysname-Bridge-Aggregation2] link-aggregation mode dynamic [Sysname-Bridge-Aggregation2] quit # Assign ports GigabitEthernet 4/0/1, GigabitEthernet 4/0/2, GigabitEthernet 4/0/3, and GigabitEthernet 4/0/4 to the aggregate interface.

  • Page 49: Bfd Mad-enabled Irf Configuration Example For A Four-chassis Irf Fabric

    Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 277872640 is Up, ifAdminStatus is 1, ifOperStatus is 1 %May 7 09:23:16:069 2010 IFNET/3/LINK_UPDOWN: GigabitEthernet2/3/0/2 link status is #May 7 09:23:16:302 2010 LAGG/1/AggPortRecoverActive: Trap 1.3.6.1.4.1.2011.5.25.25.2.4<hwAggPortActiveNotification>: Aggregation Group 2: port member 277872640 becomes ACTIVE! %May 7 09:23:16:322 2010 LAGG/5/LAGG_ACTIVE: Member port GigabitEthernet2/4/0/1 of aggregation group BAGG2 becomes ACTIVE.

  • Page 50

    Figure 17 Network diagram Configuration procedure Configure Device A: # Assign member ID 1 to Device A, create IRF-port 1 and IRF-port 2, and bind them to Ten-GigabitEthernet 3/0/1 and Ten-GigabitEthernet 3/0/2, respectively. <Sysname> system-view [Sysname] irf member 1 Info: Member ID change will take effect after the member reboots and operates in IRF mode.

  • Page 51

    [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. Continue? [Y/N]:y Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in IRF mode? [Y/N]:y Please wait...

  • Page 52

    [Sysname] irf-port 1 [Sysname-irf-port1] port group interface ten-gigabitethernet 2/0/1 [Sysname-irf-port1] quit [Sysname] irf-port 2 [Sysname-irf-port2] port group interface ten-gigabitethernet 2/0/2 # Save the current configuration. [Sysname] quit <Sysname> save # Connect Device C to Device A as shown in Figure 17.

  • Page 53

    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 D reboots to join the IRF fabric. A four-chassis IRF fabric is formed. Configure BFD MAD: # Create VLAN 3, and add GigabitEthernet 1/2/0/1, GigabitEthernet 2/3/0/1, GigabitEthernet 3/3/0/1, and GigabitEthernet 4/3/0/1 to VLAN 3.

  • Page 54: Restoring Standalone Mode

    %May 6 15:10:05:477 2010 MAD/1/MAD_COLLISION_DETECTED: Multi-active devices detected, please fix it. In addition, because the master in IRF 2 has a higher member ID than the master in IRF 1, the MAD mechanism places IRF 2 in Recovery state and shuts down all its ports except for those excluded from the shutdown action.

  • Page 55

    Figure 18 Network diagram Configuration procedure Identify the master. <IRF> display irf MemberID Slot Role Priority CPU-Mac Description Master 00e0-fc0a-15e0 DeviceA Slave 00e0-fc0f-8c02 DeviceA Slave 00e0-fc0f-15e1 DeviceB Slave 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 : no...

  • Page 56

    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. Please wait........The current configuration is saved to the active main board successfully. Configuration is saved to device successfully. Change the operating mode of Device A to standalone.

  • Page 57: Support And Other Resources

    Related information Documents To find related documents, browse to the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals For related documentation, navigate to the Networking section, and select a networking category. •...

  • Page 58: Conventions

    Conventions This section describes the conventions used in this documentation set. Command conventions Convention Description Boldface Bold text represents commands and keywords that you enter literally as shown. Italic Italic text represents arguments that you replace with actual values. Square brackets enclose syntax choices (keywords or arguments) that are optional. Braces enclose a set of required syntax choices separated by vertical bars, from which { x | y | ...

  • Page 59

    Network topology icons Represents a generic network device, such as a router, switch, or firewall. Represents a routing-capable device, such as a router or Layer 3 switch. Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports Layer 2 forwarding and other Layer 2 features.

  • Page 60: Index

    Configuring IRF member switches in IRF mode,19 Connecting physical IRF ports,16 Planning the IRF fabric setup,13 Contacting HP,53 Preconfiguring IRF member switches in standalone Conventions,54 mode,13 Displaying and maintaining an IRF fabric,32 Related information,53 Fast-restoring IRF configuration for a one-MPU...

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