Method for detecting universal route package tunnel

A technology of general routing encapsulation and detection method, applied in the field of network communication, can solve problems such as GRE tunnel detection, GRE protocol has no detection mechanism, GRE tunnel cannot be maintained, etc., and achieves the effect of improving reliability.

CN1863101AInactive Publication Date: 2006-11-15HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2006-11-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a testing method for universal route package tunnel in network communication field that uses OAM / BFD testing method checking GRE tunnel. The router at the two ends of GRE enables the testing function and sends testing file to opposite terminal. Counting the file quantity in regulated time to determine the state of GRE tunnel, corresponding measure would be taken according to the GRE tunnel state. The invention effectively improves the reliability of GRE tunnel.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a detection method of a general routing encapsulation tunnel. Background technique

[0002] GRE (Generic Routing Encapsulation) is to encapsulate the packets of certain network layer protocols, such as IP and IPX (packet exchange protocol), so that these encapsulated messages can be transmitted in another network layer protocol, such as IP.

[0003] The current GRE protocol itself has no detection mechanism, which makes the GRE tunnel unmaintainable. Because the GRE tunnel cannot be detected, the status of the GRE tunnel cannot be monitored, and the backup of the tunnel cannot be realized, therefore, the reliability of the tunnel is not high.

[0004] Therefore, it is necessary to provide a method for detecting the GRE tunnel. Contents of the invention

[0005] In view of the existing problems in the above-mentioned prior art, the object of the present invention...

Examples

Embodiment Construction

[0036] The core idea of ​​the present invention is to provide a detection method for a general routing encapsulation tunnel, which uses an OAM (operation and maintenance) / BFD (bidirectional forwarding detection) detection mechanism to detect a GRE tunnel, thereby effectively improving the reliability of the GRE tunnel.

[0037] The present invention provides a detection method for a general routing encapsulation tunnel, referring to figure 1 It is a flowchart of the operation of the method of the present invention, and the method specifically includes:

[0038] Step 10: After the GRE tunnel is established, the routers at both ends of the GRE tunnel enable the detection function, and send detection packets to the opposite end respectively;

[0039] Since the GRE tunnel is a bidirectional tunnel, the bidirectional connectivity needs to be tested, and the routers at both ends must send detection packets to the opposite end;

[0040] First configure the detection function entity ...