This MIB contains managed object definitions for
Cisco implementation of multicast in VPNs defined
by the Internet draft: draft-rosen-vpn-mcast-05.txt.
Note that this MIB works along with the
L3VPN-MPLS-VPN-MIB.
nMvrfChange notification signifies a change about
a MVRF in the device. The change event can be creation of
the MVRF, deletion of the MVRF or an update on the default
or data MDT configuration of the MVRF. The change event
is indicated by ciscoMvpnGenOperStatusChange embedded in
the notification. The user can then query
ciscoMvpnGenericTable, ciscoMvpnMdtDefaultTable and/or
ciscoMvpnMdtDataTable to get the details of the change as
necessary.
Note: Since the creation of a MVRF is often followed by
configuration of default and data MDT groups for the MVRF,
more than one (three at most) notifications for a MVRF may
be generated serially, and it is really not necessary to
generate all three of them. An agent may choose to generate a
notification for the last event only, that is for data MDT
configuration.
Similarly, deletion of default or data MDT configuration on a
MVRF happens before a MVRF is deleted, it is recommended
that the agent send the notification for MVRF deletion
event only.