Configuring Vlan Consistency Checking; Displaying Show Command Output For Vlan Consistency Checking - Cisco Nexus 9000 Series Configuration Manual

Configuring VXLAN EVPN Multihoming
• It is recommended to override the default CFS multicast address with the CLI cfs ipv4 mcast-address
• The VLAN consistency check cannot detect a mismatch in switchport trunk native vlan configuration.
• CFSoIP and CFSoE should not be used in the same device.
• CFSoIP should not be used in devices that are not used for VLAN consistency checking.
• If CFSoIP is required in devices that do not participate in VLAN consistency checking, a different

Configuring VLAN Consistency Checking

Use the cfs ipv4 mcast-address <mcast address> CLI command to override the default CFS multicast address.
Use the cfs ipv4 distribute CLI command to enable CFSoIP.
To enable or disable the VLAN consistency checking, use the new vlan-consistency-check CLI command
that has been added under the evpn esi multihoming mode.
switch (config)# sh running-config | in cfs
cfs ipv4 mcast-address 239.255.200.200
cfs ipv4 distribute
switch# sh run | i vlan-consistency
evpn esi multihoming

Displaying Show command Output for VLAN Consistency Checking

See the following show commands output for VLAN consistency checking.
To list the CFS peers, use the sh cfs peers name nve CLI command.
switch# sh cfs peers name nve
Scope
-------------------------------------------------------------------------
Switch WWN
-------------------------------------------------------------------------
20:00:f8:c2:88:23:19:47 172.31.202.228
20:00:f8:c2:88:90:c6:21 172.31.201.172
20:00:f8:c2:88:23:22:8f 172.31.203.38
20:00:f8:c2:88:23:1d:e1 172.31.150.132
20:00:f8:c2:88:23:1b:37 172.31.202.233
20:00:f8:c2:88:23:05:1d 172.31.150.134
The show nve ethernet-segment command now displays the following details:
• The list of VLANs for which consistency check is failed.
• Remaining value (in seconds) of the global VLAN CC timer.
switch# sh nve ethernet-segment
ESI Database
<mcast address> command.
multicast group should be configured for devices that participate in VLAN consistency with the CLI cfs
ipv4 mcast-address <mcast address> command.
vlan-consistency-check
: Physical-ip
IP Address
Switch
Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, Release 7.x
Configuring VLAN Consistency Checking
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