Invention Grant
US08804718B2 Preventing traffic flooding to the root of a multi-point to multi-point label-switched path tree with no receivers
有权
防止流量洪泛到没有接收器的多点到多点标签交换路径树的根目录
- Patent Title: Preventing traffic flooding to the root of a multi-point to multi-point label-switched path tree with no receivers
- Patent Title (中): 防止流量洪泛到没有接收器的多点到多点标签交换路径树的根目录
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Application No.: US12108197Application Date: 2008-04-23
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Publication No.: US08804718B2Publication Date: 2014-08-12
- Inventor: IJsbrand Wijnands , Arjen Boers
- Applicant: IJsbrand Wijnands , Arjen Boers
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: H04L12/16
- IPC: H04L12/16 ; H04L12/28 ; H04L12/56 ; H04J3/26 ; G06F15/177 ; H04N7/173
Abstract:
A method is provided for pruning an MP2MP tree. The method includes (a) in a first node of an MP2MP LSP tree, the MP2MP LSP tree including a plurality of nodes, determining whether the first node has only a single replication branch for the MP2MP LSP tree, the single replication branch representing a downstream path to only a second node of the plurality of nodes, (b) in response to determining that the first node has only a single replication branch for the MP2MP LSP tree, sending a message to the second node indicating that the second node should refrain from sending upstream traffic towards the first node, and (c) in response to determining that the first node does not have only a single replication branch for the MP2MP LSP tree, refraining from sending a message to the second node indicating that the second node should refrain from sending upstream traffic of the MP2MP LSP tree towards the first node. Apparatus are also provided for use in practicing certain embodiments.
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