An entry in the table contains an IP address that is
associated with a virtual router. The number of rows
for a given IP version, VrID and ifIndex will equal the
number of IP addresses associated (e.g., backed up) by
the virtual router (equivalent to
'vrrpOperationsIpAddrCount').
Rows in the table cannot be modified unless the value
of `vrrpOperationsState' has transitioned to
`initialize'.