发明授权
US07852751B2 Constructing repair paths around multiple non-available links in a data communications network
有权
围绕数据通信网络中的多个不可用链路构建修复路径
- 专利标题: Constructing repair paths around multiple non-available links in a data communications network
- 专利标题(中): 围绕数据通信网络中的多个不可用链路构建修复路径
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申请号: US12032274申请日: 2008-02-15
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公开(公告)号: US07852751B2公开(公告)日: 2010-12-14
- 发明人: Stewart Frederick Bryant , Ian Michael Charles Shand
- 申请人: Stewart Frederick Bryant , Ian Michael Charles Shand
- 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: Hickman Palermo Truong & Becker LLP
- 主分类号: H04L12/26
- IPC分类号: H04L12/26
摘要:
A data processing apparatus is configured for initiating a not-via approach for creating repair path information for a first link between the first network node and a second network node; creating a list of other network nodes that the not-via repair path traverses; creating and storing entries in the FIB identifying repair addresses for the network nodes and that cause (a) packets directed to all addresses normally reachable through the first link to be encapsulated to the second node not via the first node, (b) packets directed to a not-via address that is normally reachable through the first link to be encapsulated to the second node not via the first node, and (c) dropping packets directed to a not-via address that is normally reachable through the first link when the not-via address is in the list; repeating the preceding steps for all other links of the first network node.
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