The tVrrpOpAdvIntervalInherit object is valid only if the VRRP
virtual router instance associated with this entry is a non-owner.
When the VRRP instance is operating as a backup and the value of
tVrrpOpAdvIntervalInherit is set to 'true', the master down
timer is indirectly derived from the value in the advertisement
interval field of the VRRP message received from the current master.
When the VRRP instance is operating as a backup and the value of
tVrrpOpAdvIntervalInherit is set to 'false', the configured
advertisement interval (vrrpOperationsAdvInterval) is matched
against the value in the advertisement interval field of the VRRP
message received from the current master. If the two values do not
match then the VRRP advertisement is discarded
When the VRRP instance is operating as a master, the value of
tVrrpOpAdvIntervalInherit has no effect.