The value of tmnxMcPeerMobileMGRowStatus is used for creation/deletion
of multi-chassis peer mobile-gateway entries.
In order for the row creation to succeed, values for
tmnxMcPeerIpType, tmnxMcPeerIpAddr, tmnxMcPeerMobileMGId and
tmnxMcPeerMobileMGRole must be included in the same SNMP SET PDU
as tmnxMcPeerMobileRowStatus. Otherwise, the SET request will fail
with an 'inconsistentValue' error.