In "Multicast Virtual Private Networks" (MVPNs), customer
multicast flows are carried in "tunnels" through a service
provider's network. The base specifications for MVPN
define BGP multicast VPN "auto-discovery" routes, and
specify how to use an auto-discovery route to advertise
the fact that an individual customer multicast flow is
being carried in a particular tunnel.
However, those specifications do not provide a way
to specify, in a single such route, that multiple customer
flows are being carried in a single tunnel. Those
specifications also do not provide a way to advertise
that a particular tunnel is to be used by default to
carry all customer flows, except in the case where
that tunnel is joined by all the provider edge routers
of the MVPN.
This document eliminates these restrictions by specifying
the use of "wildcard" elements in the customer flow
identifiers. With wildcard elements, a single
auto-discovery route can refer to multiple customer
flows, or even to all customer flows.
Working Group Summary
This document is a product of L3VPN WG. There were
no technical concerns raised during the WG Last Call.
There are no known concerns with the quality of this document.
Ben Niven-Jenkins (ben@...) is the Document Shepherd
for this document
Stewart Bryant is the Responsible Area Director.