We have a stack of 3 C3750 switches with
IOS version 122-46.SE and i keep getting the below error:
IP ARP: ignored gratuitous arp src <SRC-IP> <SRC-MAC>, dst <DST-MAC> <SW-MAC>, interface Vlan1
On this stack we have some clustering solutions e.g AIX HACMP and CheckPoint ClusterXL. At some point we also had an issue with cluster failover. A cluster IP is failing over between the two nodes but the MAC address used is the one that each node has and not a virtual one. After i used the ip sticky-arp command the problem fixed.
It could be that the two issues are not related but since the clusters normally send GARPs to notify the network to update the ARP tables it might make sense
Your feedback would be appreciated.#