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Contents
VXLAN overview ·············································································· 1
VXLAN network model ················································································································ 1
VXLAN packet format ················································································································· 2
Working mechanisms ·················································································································· 3
Assignment of traffic to VXLANs ····························································································· 3
MAC learning ····················································································································· 3
Traffic forwarding ················································································································ 4
Access mode of VSIs ··········································································································· 6
ARP flood suppression ················································································································ 6
VXLAN IP gateways ··················································································································· 7
Protocols and standards ·············································································································· 7
Configuring basic VXLAN features ······················································· 8
Configuration restrictions and guidelines ························································································· 8
VXLAN configuration task list ········································································································ 8
Setting the forwarding mode for VXLANs ························································································ 9
Creating a VXLAN on a VSI ········································································································· 9
Configuring a VXLAN tunnel ········································································································· 9
Assigning VXLAN tunnels to a VXLAN ·························································································· 10
Mapping ACs to a VSI ··············································································································· 10
Mapping a static Ethernet service instance to a VSI ·································································· 11
Mapping dynamic Ethernet service instances to VSIs ································································ 11
Managing MAC address entries ·································································································· 12
Configuring static remote-MAC address entries ······································································· 12
Disabling remote-MAC address learning················································································· 12
Enabling local-MAC change logging ······················································································ 13
Confining floods to the local site ·································································································· 13
Setting the destination UDP port number of VXLAN packets ····························································· 14
Enabling ARP flood suppression ································································································· 14
Disabling remote ARP learning for VXLANs ··················································································· 14
Displaying and maintaining VXLANs ···························································································· 15
Unicast-mode VXLAN configuration example ················································································· 15
Network requirements ········································································································ 15
Configuration procedure ····································································································· 16
Verifying the configuration ··································································································· 19
Configuring VXLAN IP gateways ······················································· 21
Overview ································································································································ 21
VXLAN IP gateways separated from VTEPs ············································································ 21
Centralized VXLAN IP gateway deployment ············································································ 22
Distributed VXLAN IP gateway deployment ············································································· 23
Configuration prerequisites ········································································································ 26
Configuring a centralized VXLAN IP gateway ················································································· 26
Configuring a distributed VXLAN IP gateway ················································································· 27
Configuration restrictions and guidelines ················································································ 27
Configuration prerequisites ·································································································· 27
Configuration procedure ····································································································· 27
Configuring a VSI interface ········································································································ 28
Displaying and maintaining VXLAN IP gateway ·············································································· 29
VXLAN IP gateway configuration examples ··················································································· 29
Centralized VXLAN IP gateway configuration example ······························································ 29
Distributed VXLAN IPv4 gateway configuration example ···························································· 34
Distributed VXLAN IPv6 gateway configuration example ···························································· 43
Index ··························································································· 54
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