US Patent Application 18226967. FAULT DETECTION METHOD, NETWORK DEVICE, AND SYSTEM simplified abstract

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FAULT DETECTION METHOD, NETWORK DEVICE, AND SYSTEM

Organization Name

Huawei Technologies Co., Ltd.==Inventor(s)==

[[Category:Zhiyong Li of Beijing (CN)]]

[[Category:Yaqun Xiao of Beijing (CN)]]

[[Category:Jianwu Hao of Beijing (CN)]]

[[Category:Sheng Fang of Beijing (CN)]]

[[Category:Li Fan of Beijing (CN)]]

FAULT DETECTION METHOD, NETWORK DEVICE, AND SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18226967 titled 'FAULT DETECTION METHOD, NETWORK DEVICE, AND SYSTEM

Simplified Explanation

The patent application describes a method, network device, and system for detecting faults in a network.

  • The method involves receiving a BFD packet from a second network device through a first forwarding path in an SR policy.
  • The BFD packet includes indication information of a SID list.
  • Based on the indication information, the first network device determines a second forwarding path that is reversely co-routed with the first forwarding path.
  • The first network device sends a response packet of the BFD packet to the second network device through the second forwarding path.
  • This allows the second network device to perform fault detection on the first forwarding path using the response packet.


Original Abstract Submitted

A fault detection method, a network device, and a system are provided. The method includes: After a first network device receives, through a first forwarding path in an SR policy, a BFD packet that is sent by a second network device and that includes indication information of a SID list, the first network device determines, based on the indication information of the SID list, a second forwarding path that is reversely co-routed with the first forwarding path, and sends a response packet of the BFD packet to the second network device through the second forwarding path, so that the second network device can perform fault detection on the first forwarding path based on the response packet.

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