@misc{rfc8556, series = {Request for Comments}, number = 8556, howpublished = {RFC 8556}, publisher = {RFC Editor}, doi = {10.17487/RFC8556}, url = {https://www.rfc-editor.org/info/rfc8556}, author = {Eric C. Rosen and Mahesh Sivakumar and Sam Aldrin and Andrew Dolganow and Tony Przygienda}, title = {{Multicast VPN Using Bit Index Explicit Replication (BIER)}}, pagetotal = 17, year = 2019, month = apr, abstract = {The Multicast Virtual Private Network (MVPN) specifications require the use of multicast tunnels ("P-tunnels") that traverse a service provider's backbone network. The P-tunnels are used for carrying multicast traffic across the backbone. A variety of P-tunnel types are supported. Bit Index Explicit Replication (BIER) is a new architecture that provides optimal multicast forwarding through a "multicast domain", without requiring intermediate routers to maintain any per-flow state or to engage in an explicit tree-building protocol. This document specifies the protocol and procedures that allow MVPN to use BIER as the method of carrying multicast traffic over a service provider's backbone network.}, }