Multicast Protocols Supported In The Provider Network - Alcatel-Lucent 7750 SR Manual

VPRN Features

Multicast Protocols Supported in the Provider Network

When MVPN auto-discovery is disabled, PIM-SM can be used for I-PMSI, and PIM-SSM can be
used for S-PMSI; When MVPN S-PMSI auto-discovery is enabled, both PIM-SM and PIM SSM
can be used for I-PMSI, and PIM-SSM can be used for S-PMSI. In the customer network, both
PIM-SM and PIM-SSM are supported.
An MVPN is defined by two sets of sites: sender sites set and receiver sites set, with the following
properties:
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A site could be both in the sender sites set and receiver sites set, which implies that hosts within
such a site could both originate and receive multicast traffic. An extreme case is when the sender
sites set is the same as the receiver sites set, in which case all sites could originate and receive
multicast traffic from each other.
Sites within a given MVPN may be either within the same, or in different organizations, which
implies that an MVPN can be either an intranet or an extranet. A given site may be in more than
one MVPN, which implies that MVPNs may overlap. Not all sites of a given MVPN have to be
connected to the same service provider, which implies that an MVPN can span multiple service
providers.
Another way to look at MVPN is to say that an MVPN is defined by a set of administrative
policies. Such policies determine both sender sites set and receiver site set. Such policies are
established by MVPN customers, but implemented by MVPN service providers using the existing
BGP/MPLS VPN mechanisms, such as route targets, with extensions, as necessary.
MVPN Using BGP Control Plane
Note that the next generation MVPN solution replaces the Rosen MVPN draft and is currently
being defined at the IETF. Its IETF status is still a working group draft but it has strong support. It
is quite stable for implementation from a technical point of view.
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Hosts within the sender sites set could originate multicast traffic for receivers in the
receiver sites set.
Receivers not in the receiver sites set should not be able to receive this traffic.
Hosts within the receiver sites set could receive multicast traffic originated by any host in
the sender sites set.
Hosts within the receiver sites set should not be able to receive multicast traffic originated
by any host that is not in the sender sites set.
7750 SR OS Services Guide