The value of svcTlsPbbIgmpSnpgMRtrMacName specifies
the Destination MAC-Address-Name in the Backbone VPLS
to reach a specific IGMP Snooping MRouter.
In the case of an I-Component instance that is multi-homed
on 2 physical nodes, an I-component instance, after
becoming active, uses this MAC address as the destination
MAC address to reach that IGMP Snooping MRouter.
This allows to maintain the communication with that
MRouter while no IGMP Queries from that MRouter have been
snooped by this I-component instance.