Method for the Trigger Failure Detection of Bidirectional Forwarding Detection
AssigneeHuawei Technologies Co., Ltd.
InventorXuefei Tan
Life of this patent
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Abstract
A method for failure detection on a bidirectional forwarding link mainly includes: sending, by one side of a BFD session, a BFD packet to the opposite side of the BFD session, and detecting a BFD packet sent by the opposite side, and starting, by the local side of the BFD session, BFD session detection when receiving a first BFD packet sent from the opposite side. By the method of the invention, it can be avoided that a router misinforms that failure occurs on a BFD session link due to difference of delays needed to deliver a BFD session parameter from a negotiation module of the router to a detection module.
Claims18
A method for triggering failure detection in Bidirectional Forwarding Detection, wherein a Bidirectional Forwarding Detection session is established between two sides of a bidirectional forwarding link, and the method comprises:
- sending, by one side of the Bidirectional Forwarding Detection session, a Bidirectional Forwarding Detection packet to the opposite side, and receiving a Bidirectional Forwarding Detection packet from the opposite side;
- and
- triggering, by one side of the Bidirectional Forwarding Detection session, failure detection upon receiving a first Bidirectional Forwarding Detection packet from the opposite side.
Dependencies are inferred from the claim text.