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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
IRF member ID ··························································································································································· 5
MPU roles ·································································································································································· 5
IRF port ······································································································································································ 5
IRF physical port ······················································································································································· 6
IRF domain ID ··························································································································································· 6
IRF split ······································································································································································ 6
IRF merge ·································································································································································· 7
Member priority ························································································································································ 7
Master election ·································································································································································· 7
IRF multi-active detection ·················································································································································· 8
Multi-active handling procedure ····························································································································· 8
LACP MAD ································································································································································ 9
BFD MAD ······························································································································································· 10
ARP MAD ······························································································································································· 11
ND MAD ································································································································································ 12
Configuring IRF ··························································································································································· 14
General restrictions and configuration guidelines ······································································································ 14
Software requirements ·········································································································································· 14
IRF size ··································································································································································· 14
MPU and IRF physical port restrictions ················································································································ 14
IRF link redundancy ··············································································································································· 15
Multichassis link aggregation ······························································································································ 15
Feature and IRF mode compatibility ···················································································································· 15
MAD and IRF domain restrictions ························································································································ 15
MDC ······································································································································································· 16
EVI restrictions ························································································································································ 16
Other configuration guidelines ···························································································································· 16
Setup and configuration task list ·································································································································· 17
Planning the IRF fabric setup ········································································································································· 17
Preconfiguring IRF member devices in standalone mode ·························································································· 18
Assigning a member ID to each IRF member device ························································································· 18
Specifying a priority for each member device ··································································································· 18
Binding physical ports to IRF ports ······················································································································ 19
Enabling enhanced IRF in standalone mode ··············································································································· 20
Saving configuration to the next-startup configuration file ························································································ 20
Connecting physical IRF ports ······································································································································· 21
Setting the operating mode to IRF mode ····················································································································· 22
Accessing the IRF fabric ················································································································································ 23
Configuring IRF member devices in IRF mode ············································································································ 23
Assigning an IRF domain ID to the IRF fabric ····································································································· 23
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