ESRP Ping Tracking
You can configure ESRP to track
connectivity using a simple ping to any IPv4 device. This may represent the default route of
the switch, or any device meaningful to network connectivity of the master ESRP switch. The
switch automatically relinquishes master status and remains in slave mode if a ping
keepalive fails. You can configure a maximum of eight ping tracks.

Note
ESRP ping tracking is not supported for IPv6 destinations. The ESRP ping tracking option cannot be configured to ping an IP address within an ESRP VLAN subnet. It should be configured on some other normal VLAN across the router boundary.