You can configure
ESRP (Extreme Standby Router Protocol) to track specified
IPv4 routes in the route table as criteria for ESRP failover. If all of the configured
routes are not available within the route table, the switch automatically relinquishes
master status and remains in slave mode. You can track a maximum of eight routes per route
table.
Note
ESRP route tracking is not supported for IPv6 destinations..