Invention Grant
US08767532B2 Optimization of distributed tunnel rerouting in a computer network with path computation at an intermediate node
有权
在具有中间节点的路径计算的计算机网络中优化分布式隧道重路由
- Patent Title: Optimization of distributed tunnel rerouting in a computer network with path computation at an intermediate node
- Patent Title (中): 在具有中间节点的路径计算的计算机网络中优化分布式隧道重路由
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Application No.: US13661529Application Date: 2012-10-26
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Publication No.: US08767532B2Publication Date: 2014-07-01
- Inventor: Jean-Philippe Vasseur , Francois Le Faucheur , Anna Charny
- Applicant: Cisco Technology, Inc.
- 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: H04L12/26
- IPC: H04L12/26
Abstract:
In one embodiment, a set of tunnels is determined that traverse a particular link connected to an intermediate node in a network. The intermediate node computes, in a coordinated path computation, paths for tunnels of the set of tunnels that do not include the particular link. The coordinated path computation considers each of the tunnels of the set of tunnels. The intermediate node selects one or more tunnels of the set of tunnels for preemption. The one or more tunnels are selected as tunnels that are reroutable by respective head-end nodes of the one or more other tunnels. Notifications are sent to one or more other intermediate nodes that inform the one or more other intermediate nodes of the one or more tunnels selected for preemption.
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