Bidirectional forwarding detection system and detection time configuration method of bidirectional forwarding detection

Abstract

The invention discloses a bidirectional forwarding detection system and a detection time configuration method of bidirectional forwarding detection. In the process of realizing bidirectional forwarding detection, the network time delay between a bidirectional forwarding detection local end and a bidirectional forwarding detection opposite end is tested, and then the detection time of the bidirectional forwarding detection local end and the detection time of the bidirectional forwarding detection opposite end are configured to be the same based on the measured network time delay; that is, according to the invention, the detection time of bidirectional forwarding detection is configured based on the network time delay between the bidirectional forwarding detection local end and the bidirectional forwarding detection opposite end and is not configured only according to the packet transmitting and receiving interval and the detection times configured on the network equipment on two ends at present, so the problem that the detection time hardware processing capability negotiated by a central processing unit at present cannot be reached to cause the a BFD conversation to be broken so as to cause frequent link jittering to lead to unnecessary system overhead can be avoided so as to improve the accuracy and resource utilization ratio of bidirectional forwarding detection.

Description

technical field [0001] The invention relates to the communication field, in particular to a bidirectional forwarding detection system and a detection time configuration method for bidirectional forwarding detection. Background technique [0002] In the field of IP network communication, Bidirectional Forwarding Detection (BFD, Bidirectional Forwarding Detecting) protocol provides a general standardized fast fault detection mechanism independent of medium and protocol. [0003] BFD establishes a session on two network devices to detect bidirectional forwarding paths between network devices and serve upper-layer applications. After a session is established, network devices will periodically and quickly send BFD packets to each other and perform BFD timeout detection. That is, if a network device does not receive a BFD packet from the peer network device within the detection If the bidirectional forwarding path between the network devices fails, notify the served upper layer a...

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a two-way forwarding detection system and a detection time configuration method for two-way forwarding detection, so as to avoid disconnection of the BFD session due to the failure of the existing detection time negotiated by the central processor to reach the hardware processor capability , which in turn leads to the problem of unnecessary system overhead caused by frequent link jitter

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