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NOTE: This charter is a snapshot of the 59th IETF Meeting in Seoul, Korea. It may now be out-of-date.
Last Modified: 2003-10-30
BGMP is a scalable multicast routing protocol which addresses these problems. Like CBT and PIM Sparse Mode, BGMP chooses a global root for a delivery tree. However, the root is a domain, not a single router, so if there is any path available to the domain connectivity can be maintained. BGMP builds a bidirectional, shared tree of domains. Similarly to the unicast EGP/IGP split, BGMP is used as the inter-domain or external protocol, while domains can run any multicast IGP internally (such as CBT or PIM Sparse Mode), and can build source-specific shortest-path distribution branches to supplant the shared tree where needed.
The BGMP working group is chartered to complete the protocol specification and follow it through the Internet standards track. It will also help to design a transition mechanism from MSDP (the Multicast Source Distribution Protocol, an interim interdomain solution that is unlikely to scale for the long term) to Internet-wide BGMP.
|Nov 99||Develop security portion of spec|
|Nov 99||Consider monitoring and measurement (e.g. multicast traceroute) and evaluate support for existing and/or new monitoring and measurement tools and protocols.|
|Nov 99||Evaluate interoperability with multicast IGPs in more detail and identify any relevant optimizations and/or implementation issues.|
|Nov 99||Evaluate forwarding rules and transient behavior under a wide range of topologies under simulation|
|Done||Resolve multi-access LAN forwarding mechanisms|
|Mar 00||Produce revised protocol specification based upon simulations and evaluations|
|Mar 00||Produce initial version of MIB|
|Mar 00||Design a transition architecture from PIM-SM/MSDP to BGMP|
|Jul 00||Guide the development of a reference implementation|
|Jul 00||Oversee interoperability experiments|
|Nov 00||Finalize MIB|
|Nov 00||Produce applicability document|
|Jul 03||Submit final version of protocol specification Internet Draft|