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Contents

Configuring an IRF fabric ··············································································· 1

About IRF ··························································································································································· 1

IRF network model ····································································································································· 1

IRF benefits ················································································································································ 2

Basic concepts ··········································································································································· 3

IRF network topology ································································································································· 5

Master election ··········································································································································· 5

Interface naming conventions ···················································································································· 6

File system naming conventions ················································································································ 6

Configuration synchronization ···················································································································· 7

Multi-active handling procedure ················································································································· 7

MAD mechanisms ······································································································································ 9

Restrictions and guidelines: IRF configuration ································································································· 12

Hardware compatibility with IRF··············································································································· 12

Software requirements for IRF ················································································································· 12

IRF fabric size ·········································································································································· 12

Candidate IRF physical interfaces ··········································································································· 12

Transceiver modules and cables selection for IRF ·················································································· 13

IRF port connection ·································································································································· 13

IRF physical interface configuration restrictions and guidelines ······························································ 13

Feature compatibility and configuration restrictions with IRF ··································································· 14

Licensing requirements for IRF ················································································································ 14

Configuration rollback restrictions ············································································································ 14

IRF tasks at a glance ······································································································································· 15

Planning the IRF fabric setup ··························································································································· 16

Setting up an IRF fabric ··································································································································· 16

Assigning a member ID to each IRF member device ··············································································· 16

Specifying a priority for each member device ·························································································· 16

Binding physical interfaces to IRF ports ··································································································· 17

Saving configuration to the next-startup configuration file ······································································· 17

Connecting IRF physical interfaces·········································································································· 17

Setting the operating mode to IRF mode ································································································· 17

Accessing the IRF fabric ·························································································································· 18

Configuring MAD ·············································································································································· 19

Restrictions and guidelines for MAD configuration ·················································································· 19

Configuring LACP MAD ··························································································································· 19

Configuring BFD MAD ······························································································································ 20

Excluding interfaces from the shutdown action upon detection of multi-active collision ·························· 24

Recovering an IRF fabric ························································································································· 24

Optimizing IRF settings for an IRF fabric ········································································································· 25

Changing the member ID of a member device ························································································ 25

Changing the priority of a member device ······························································································· 25

Adding physical interfaces to an IRF port ································································································ 26

Bulk-configuring basic IRF settings for a member device ········································································ 27

Enabling IRF auto-merge ························································································································· 28

Configuring a member device description ································································································ 28

Configuring the IRF bridge MAC address ································································································ 28

Enabling software auto-update for software image synchronization ························································ 29

Setting the IRF link down report delay ····································································································· 30

Removing an expansion interface card that has IRF physical interfaces ················································· 30

Replacing an expansion interface card that has IRF physical interfaces ················································· 31

Display and maintenance commands for IRF ·································································································· 31

IRF configuration examples ····························································································································· 31

Example: Configuring an LACP MAD-enabled two-chassis IRF fabric ···················································· 31

Example: Configuring a BFD MAD-enabled two-chassis IRF fabric ························································ 34

Example: Restoring standalone mode ····································································································· 37

Summary of Contents for MSR 5600

Page 1: ...H3C MSR 5600 Routers Comware 7 Virtual Technologies Configuration Guide New H3C Technologies Co Ltd http www h3c com Software version MSR CMW710 R0809 Document version 6W400 20200823...

Page 2: ...H3C Technologies Co Ltd any trademarks that may be mentioned in this document are the property of their respective owners Notice The information in this document is subject to change without notice A...

Page 3: ...a set of required syntax choices separated by vertical bars from which you select one x y Square brackets enclose a set of optional syntax choices separated by vertical bars from which you select one...

Page 4: ...s a Layer 2 or Layer 3 switch or a router that supports Layer 2 forwarding and other Layer 2 features Represents an access controller a unified wired WLAN module or the access controller engine on a u...

Page 5: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...

Page 6: ...configuration file 17 Connecting IRF physical interfaces 17 Setting the operating mode to IRF mode 17 Accessing the IRF fabric 18 Configuring MAD 19 Restrictions and guidelines for MAD configuration 1...

Page 7: ...ii...

Page 8: ...IRF network model Figure 1 shows an IRF fabric that has two devices which appear as a single node to the upper layer and lower layer devices Figure 1 IRF application scenario As shown in Figure 2 Dev...

Page 9: ...ign several physical links between neighboring members to their IRF ports to create a load balanced aggregate IRF connection with redundancy Multichassis link aggregation You can use the Ethernet link...

Page 10: ...escription Master MPU Active MPU of the master device It is also called the global active MPU You configure and manage the entire IRF fabric at the CLI of the global active MPU Active MPU Active MPU o...

Page 11: ...wo independent IRF fabrics are united as shown in Figure 4 Figure 4 IRF merge MAD An IRF link failure causes an IRF fabric to split in two IRF fabrics operating with the same Layer 3 settings includin...

Page 12: ...devices Figure 6 Daisy chain topology Master election Master election occurs each time the IRF fabric topology changes in the following situations The IRF fabric is established The master device fail...

Page 13: ...ber subslot number interface index format For example set the link type of GigabitEthernet 1 0 1 to trunk as follows Sysname system view Sysname interface gigabitethernet 1 0 1 Sysname GigabitEthernet...

Page 14: ...their own startup configuration files on their respective local active MPU only after these devices are removed from the IRF fabric As a best practice back up the next startup configuration file on a...

Page 15: ...t its member devices if the system requires you to do so After these member devices join the active IRF fabric as subordinate devices the IRF merge is complete as shown in Figure 7 The network interfa...

Page 16: ...can come from any vendor Requires MAD dedicated physical links and Layer 3 interfaces which cannot be used for transmitting user traffic The MSR routers support Layer 3 aggregate interfaces for BFD MA...

Page 17: ...rmediate device transparently forwards the extended LACPDUs received from one member device to all the other member devices If the domain IDs and active IDs sent by all the member devices are the same...

Page 18: ...mum number of Selected ports allowed for an aggregation group If the number of member ports exceeds the maximum number of Selected ports some member ports cannot become Selected BFD MAD will be unable...

Page 19: ...r member devices Software requirements for IRF All IRF member devices must run the same software image version Make sure the software auto update feature is enabled on all member devices IRF fabric si...

Page 20: ...e information about the transceiver modules and DAC cables see the switch installation guide and H3C Transceiver Modules User Guide NOTE The transceiver modules and DAC cables available for the switch...

Page 21: ...figuration Guide Layer 2 forwarding IRF ports cannot forward Layer 2 traffic Link aggregation Multichassis Layer 2 link aggregation is not supported IPsec IPsec anti replay requires that packets on th...

Page 22: ...an interface from the shutdown action for management or other special purposes when an IRF fabric transits to the Recovery state Recovering an IRF fabric 3 Optional Optimizing IRF settings for an IRF...

Page 23: ...both active and standby MPUs The standby MPU might store a different member ID than the active MPU after an MPU replacement For consistency the system updates the member ID in the active MPU automati...

Page 24: ...l interface to the IRF port port group interface interface type interface number By default no physical interfaces are bound to an IRF port Repeat this step to assign multiple physical interfaces to t...

Page 25: ...name the system converts that string For example if a VLAN exists with a name of GigabitEthernet1 0 7 in standalone mode the VLAN name will change to GigabitEthernetn 1 0 7 in IRF mode The n argument...

Page 26: ...IRF domain ID is 0 3 Create an aggregate interface and enter aggregate interface view Enter Layer 2 aggregate interface view interface bridge aggregation interface number Enter Layer 3 aggregate inte...

Page 27: ...fabric create a VLAN interface for the BFD MAD VLAN Make sure the IRF fabrics on the network use different BFD MAD VLANs Make sure the BFD MAD VLAN contains only ports on the BFD MAD links Exclude a p...

Page 28: ...fd enable and mad ip address commands on the BFD MAD enabled interface If you configure other features both BFD MAD and other features on the interface might run incorrectly MAD IP address To avoid ne...

Page 29: ...the BFD MAD VLAN Assign the ports to the VLAN as access ports port access vlan vlan id Assign the ports to the VLAN as trunk ports port trunk permit vlan vlan id Assign the ports to the VLAN as hybri...

Page 30: ...turn to system view quit 8 Enter Layer 3 aggregate interface view interface route aggregation interface number 9 Enable BFD MAD mad bfd enable By default BFD MAD is disabled 10 Assign a MAD IP address...

Page 31: ...nes If the Layer 2 ports of a VLAN interface are distributed on multiple member devices the exclusion operation might introduce IP collision risks The VLAN interface might be up on both active and ina...

Page 32: ...er id renumber new member id By default the device uses the member ID that is set in standalone mode 3 Save the running configuration save safely force 4 Return to user view quit 5 Reboot the member d...

Page 33: ...ace range view 3 Shut down the physical interfaces shutdown By default a physical interface is not administratively down If you cannot shut down a physical interface follow the system instruction to s...

Page 34: ...ctive method Enter the easy irf command with parameters As a best practice use the interactive method if you are new to IRF Restrictions and guidelines The device reboots immediately after you specify...

Page 35: ...fabric uses the bridge MAC address of the master as the IRF bridge MAC address After the master leaves the IRF bridge MAC address persists for a period of time or permanently depending on the IRF brid...

Page 36: ...the IRF fabric software auto update compares the startup software images of the MPU with the current software images of the IRF global active MPU If the two sets of images are different the MPU automa...

Page 37: ...tions and guidelines Make sure the IRF link down report delay is shorter than the heartbeat or hello timeout settings of upper layer protocols for example CFD and OSPF If the report delay is longer th...

Page 38: ...hysical interfaces on the old card by using the shutdown command 2 Remove the old card and then install the replacement card 3 Verify that the replacement card has been correctly installed by using th...

Page 39: ...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 Please input the file na...

Page 40: ...ile Please wait Saved the current configuration to mainboard device successfully Slot 1 Save next configuration file successfully Do you want to convert the content of the next startup configuration f...

Page 41: ...n GigabitEthernet1 0 2 to the aggregate interface Sysname interface ten gigabitethernet 1 0 1 Sysname Ten GigabitEthernet1 0 1 port link aggregation group 2 Sysname Ten GigabitEthernet1 0 1 quit Sysna...

Page 42: ...ter when the IRF fabric is established DeviceA irf priority 10 Save the configuration Sysname quit Sysname save Enable IRF mode Sysname system view Sysname chassis convert mode irf The device will swi...

Page 43: ...current running configuration and specify the configuration file for the next startup Continue Y N y Please input the file name cfg flash startup cfg To leave the existing filename unchanged press th...

Page 44: ...ge the operating mode of Device A and Device B from IRF to standalone Figure 15 Network diagram Procedure 1 Identify the master IRF display irf MemberID Slot Role Priority CPU Mac Description 1 0 Mast...

Page 45: ...ot You are recommended to save the current running configuration and specify the configuration file for the next startup Continue Y N y Please input the file name cfg flash startup cfg To leave the ex...

Page 46: ...convert the content of the next startup configuration file flash startup cfg to make it available in stand alone mode Y N y Now rebooting please wait Device B automatically reboots to complete the ope...

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