Multicast in MPLS/BGP IP VPNs

This RFC 6513 was published in 2012.


In order for IP multicast traffic within a BGP/MPLS IP VPN (Virtual Private Network) to travel from one VPN site to another, special protocols and procedures must be implemented by the VPN Service Provider.
These protocols and procedures are specified in this document.

RFC 6513 introduction

[RFC4364] specifies the set of procedures that a Service Provider (SP) must implement in order to provide a particular kind of VPN service ("BGP/MPLS IP VPN") for its customers.
The service described therein allows IP unicast packets to travel from one customer site to another, but it does not provide a way for IP multicast traffic to travel from one customer site to another.

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