This notification is sent when health check messages are not received from
the peer MLAG switch for 3 times the configured hello interval.
extremeMlagAltPathUp
.1.3.6.1.4.1.1916.1.41.3.0.3
This notification is sent when the ISC goes down and the alternate path to MLAG peer comes up.
extremeMlagAltPathDown
.1.3.6.1.4.1.1916.1.41.3.0.4
This notification is sent when the alternate path to MLAG peer is down. This can happen
when either alternate path or remote peer is down or the ISC link has come up.