Network equipment and method for realizing sparse mode protocol unrelated group broadcasting field hierarchy

A protocol-independent multicast and sparse mode technology, applied in the field of multicast routing, can solve the problems of heavy BSR burden and large BootStrap messages, and achieve good compatibility.
CN1889525AActive Publication Date: 2007-01-03NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2007-01-03

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Abstract

A method for delaminating PIM-SM domain includes using edge node as candidate RP of multicast set served by local domain in global domain and using it as candidate RP of multicast set served by global domain in local domain, repositioning access of said RP in global domain to RP of said multicast set in local domain on edge node when edge node in global domain becomes RP of multicast set served by local domain and repositioning access of said RP in local domain to RP of said multicast set in global domain on edge node when edge node in local domain becomes RP of multicast set served by global domain.
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Description

technical field

[0001] The invention relates to a multicast routing technology, in particular to a layered method of a PIM-SM (Protocol Independent Mulitcast Sparse Mode, Sparse Mode Protocol Independent Multicast) domain and a network device applied thereto. Background technique

[0002] The PIM-SM protocol is currently the most mature and widely used multicast routing protocol. The PIM-SM protocol domain is usually bordered by PMBR (PIM Multicast Border Router, protocol-independent multicast border router). The domain includes some interconnected routing devices running the PIM-SM protocol. The PIM-SM protocol domain is connected to the Internet through the PMBR ( the Internet).

[0003] Each multicast group in the PIM-SM domain has its RP (Rendezvous Point, rendezvous point), and other routers running the PIM-SM protocol send join messages to the RP to establish the shared tree (Shared Tree) of the multicast group . In order to let other routers in the PIM-SM domain kn...

Claims

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