- 专利标题: Apparatus, system, and method for providing node protection across label-switched paths that share labels
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申请号: US16577864申请日: 2019-09-20
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公开(公告)号: US11252100B2公开(公告)日: 2022-02-15
- 发明人: Harish Sitaraman , Raveendra Torvi , Vishnu Pavan Beeram , Chandrasekar Ramachandran
- 申请人: Juniper Networks, Inc.
- 申请人地址: US CA Sunnyvale
- 专利权人: Juniper Networks, Inc.
- 当前专利权人: Juniper Networks, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: FisherBroyles, LLP
- 优先权: IN201711008473 20170310
- 主分类号: H04L12/707
- IPC分类号: H04L12/707 ; H04L12/733 ; H04L12/911 ; H04L12/703 ; H04L12/723 ; H04L12/913
摘要:
The disclosed computer-implemented method may include (1) receiving, at a network node within a network, a packet from another network node within the network, (2) identifying, within the packet, a label stack that includes a plurality of labels that collectively represent at least a portion of a label-switched path within the network, (3) popping, from the label stack, a label that corresponds to a next hop of the network node, (4) determining, based at least in part on the label, that the next hop has experienced a failure that prevents the packet from reaching a destination via the next hop, (5) identifying a backup path that merges with the label-switched path at a next-to-next hop included in the label-switched path, and then (6) forwarding the packet to the next-to-next hop via the backup path. Various other methods, systems, and apparatuses are also disclosed.
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