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Configuring EVI ··············································································· 1
Overview ·································································································································· 1
Layer 2 connectivity extension issues ······················································································ 1
Network topologies ·············································································································· 2
Terminology ······················································································································· 3
Working mechanism ············································································································ 3
Placement of Layer 3 gateways ······························································································ 6
ARP flood suppression ········································································································· 7
Selective flooding ················································································································ 7
Path MTU ·························································································································· 8
Configuration restrictions and guidelines ························································································· 8
Licensing requirements ········································································································· 8
Feature and hardware compatibility ························································································· 8
Feature compatibility requirements ·························································································· 8
EVI configuration task list ············································································································· 8
Configuring EVI basic features ······································································································ 9
Configuring a site ID ············································································································ 9
Configuring an EVI tunnel ··································································································· 10
Assigning a network ID to the EVI tunnel ················································································ 11
Specifying extended VLANs on the EVI tunnel ········································································· 11
Configuring ENDP ············································································································· 11
Enabling EVI on transport-facing physical interfaces ································································· 12
Tuning EVI IS-IS parameters ······································································································ 13
EVI IS-IS configuration task list ···························································································· 13
Creating an EVI IS-IS process ······························································································ 13
Optimizing an EVI IS-IS network ··························································································· 14
Specifying a routing policy for an EVI IS-IS process ·································································· 17
Enabling adjacency change logging ······················································································ 18
Configuring SNMP notifications and context for EVI IS-IS ·························································· 18
Configuring Graceful Restart for an EVI IS-IS process ······························································· 19
Increasing the maximum number of MAC entries in an LSP for an EVI IS-IS process ······················· 19
Enabling EVI ARP flood suppression ···························································································· 20
Enabling EVI flooding for all destination-unknown frames ································································· 20
Enabling selective flooding for a MAC address ··············································································· 21
Displaying and maintaining EVI ··································································································· 21
EVI configuration examples ········································································································ 23
Single-homed EVI network configuration example ···································································· 23
Multiple-EVI-networks configuration example ·········································································· 29
Index ··························································································· 33
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