Symptom

Hosts will not be able to communicate outside their local VLAN or other network traffic loss.

Conditions

The anycast gateway ip address should point towards the SVI on the local switch for each edge node in the SDA deployment: EDGE#show device-tracking database Network Layer Address Link Layer Address Interface vlan prlvl age state Time left L 192.168.1.1 0000.0c9f.ffff Vl1037 1037 0100 15731mn REACHABLE In the broken scenario the anycast gateway ip address will either be missing or point towards another interface: EDGE#show device-tracking database Network Layer Address Link Layer Address Interface vlan prlvl age state Time left ARP 192.168.1.1 0000.0c9f.ffff Tu0 1037 0005 23mn STALE 736 s

Workaround

Static the anycast gateway IP address in the device tracking database for each impacted vlan on all edge nodes using the following commands: clear device-tracking database mac 0000.0c9f.ffff device-tracking binding vlan 1037 192.168.1.1 interface vlan 1037 0000.0c9f.ffff

Further Problem Description