Multicast VPN and
multicast group modeling
discovers both multicast VPNs and multicast groups and
represents them as instances of the MulticastVPN and MulticastGroup classes. A
MulticastGroup object represents a valid multicast group IP address in the
range of 224.0.0.0 to 239.255.255.255.
MulticastVPN and
MulticastGroup relationshipsshows the relationships between MulticastVPN
and MulticastGroup objects and the related network elements.
MulticastVPN and
MulticastGroup relationships

The relationships in terms of
impact analysis are defined as follows:
- A MulticastVPN has a ComposedOf one-to-many relationship to the VRFs that belong to the VPN. When one of the VRFs has a problem or is impacted by an underlying problem, the MulticastVPN is impacted too.
- A MulticastGroup has a LayeredOver many-to-one relationship to a MulticastVPN. When the MulticastVPN is impacted by a failed or impacted VRF, all MulticastGroups that are LayeredOver the MulticastVPN are impacted too.
- A MulticastVPN has a LayeredOver one-to-many relationship to one or more P2MP LSPs. When one of the P2MP LSPs is impacted by an underlying problem, the MulticastVPN is impacted too.
- A MulticastGroup has a LayeredOver many-to-one relationship to aninclusiveP2MP LSP. When the inclusive P2MP LSP is impacted by an underlying problem, all MulticastGroups that are LayeredOver the P2MP LSP are impacted too.
- A MulticastGroup has a LayeredOver one-to-one relationship to aselectiveP2MP LSP. When the selective P2MP LSP is impacted by an underlying problem, the MulticastGroup is impacted too.
- A P2MP LSP has a ComposedOf one-to-many relationship to subLSPs. When one of the subLSPs is impacted by an underlying problem, the P2MP LSP is impacted too.
- A subLSP object has most of the same relationships as a TE LSP.