NEXUS - 9K - vPC Peer Gateway - LAB Results

vPC PEER GATEWAY WORK  

vPC Peer-Gateway allows a vPC peer device to act as the active gateway for packets addressed to the other peer device router MAC. It keeps the forwarding of traffic local to the vPC peer device and avoids use of the peer-link. There is no impact on traffic and functionality when activates the Peer-Gateway capability

N9k-1(config)# vpc domain 1

N9k-1(config-vpc-domain)# peer-gateway

AFTER APPLYING Peer Gateway Command 
Gateway marked "G" on vPC Peerlink NXOS2 






Strong Recommendations
Peer-gateway must be enabled before Layer 3 peer-router.
Both vPC peers must have Layer 3 peer-router configured 
in order to take effect.Enable Supress-arp as a best 
practice while multicast ip address for VXLAN.Use separate 
loopback ip address for control and dataplane in vPC VXLAN fabric.
In vPC with MSTP, bridge priority must be same on both vPC peers.
For best convergence results fine tune 
vPC delay restore and NVE interface holddown timers.

Post Validation Check
      show version
      show module
      show diagnostics result module all detail
      show environment
      show license usage
      show interface status
      show ip interface brief
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      show cdp neighbors
      show redundancy status
      show spanning-tree summary
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      show vpc
      show vpc brief
      show vpc role
      show vpc peer-keepalives
      show vpc statistics peer-keepalive
      show vpc consistency-parameters global
      show vpc consistency-parameters interface port-channel1
      show vpc consistency-parameters vlans
      show hsrp brief
      show vrrp brief