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
Software requirements ·········································································································································· 14
IRF size ··································································································································································· 14
IRF link redundancy ··············································································································································· 15
Multichassis link aggregation ······························································································································ 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
Connecting physical IRF ports ······································································································································· 21
Accessing the IRF fabric ················································································································································ 23
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