发明授权
US07886079B2 Dynamic use of backup path computation elements across domains of a computer network
有权
在计算机网络的域上动态使用备份路径计算元素
- 专利标题： Dynamic use of backup path computation elements across domains of a computer network
- 专利标题（中）： 在计算机网络的域上动态使用备份路径计算元素
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申请号： US12706567申请日： 2010-02-16
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公开(公告)号： US07886079B2公开(公告)日： 2011-02-08
- 发明人: Jean-Philippe Vasseur , Abhay Kumar Roy , Stefano B. Previdi
- 申请人： Jean-Philippe Vasseur , Abhay Kumar Roy , Stefano B. Previdi
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： Cesari and McKenna, LLP
- 主分类号： G06F15/173
- IPC分类号： G06F15/173
摘要：
In one embodiment, one or more path computation requests from path computation clients (PCCs) in a first network domain are received at a first border router (BR) arranged at the border of the first network domain and a second network domain. The first BR learns of a path computation element (PCE) in the second network domain. The PCE in the second network domain is informed of path computation information for the first network domain. One or more tunnels are established between the first BR and the PCE in the second network domain. One or more path computation requests from PCCs in the first network domain are passed from the first BR, through the one or more tunnels, to the PCE in the second network domain, to be serviced by the PCE in the second network domain using the path computation information for the first network domain.
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