Network communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsWei Huang, Yongjian Hu
Life of this patent
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Abstract
This application provides a communication method and a communications apparatus. The method can include performing extension based on an existing operation, administration, and maintenance (OAM) packet after an intermediate node in a path of a segment routing traffic engineering (SR-TE) tunnel senses a bit error fault, to support a bit error switching function. That is, the method can include adding, to the OAM packet, identification information used to identify that signal degradation occurs in the SR-TE tunnel. As a result, it is ensured that the SR-TE tunnel supports the bit error switching function of the intermediate node, and a customer service can be effectively prevented from being damaged.
Claims14
An intermediate node, comprising:
- a memory comprising instructions;
- and
- a processor coupled with the memory, the instructions when executed by the processor cause the intermediate node to:
- receive, using a segment routing traffic engineering (SR-TE) working tunnel, a first operation, administration and maintenance (OAM) packet from a first provider edge (PE) node;
- encapsulate identification information in the first OAM packet to obtain a second OAM packet, wherein the identification information identifies that signal degradation (SD) occurs in the working SR-TE tunnel, wherein the second OAM packet is a continuity check message (CCM), wherein the intermediate node is between the first PE node and a second PE node on the working SR-TE tunnel, and the first PE node is an ingress node of the working SR-TE tunnel, the second PE node is an egress node of the working SR-TE tunnel;
- and
- send the second OAM packet to the second PE node using the working SR-TE tunnel.
A communications system, comprising:
- a first provider edge (PE) node;
- an intermediate node;
- and
- a second PE node, wherein the first PE node is connected to the second PE node by using a working segment routing traffic engineering (SR-TE) tunnel, and a path of the working SR-TE tunnel comprises the first PE node, the intermediate node, and the second PE node, wherein
- the first PE node is configured to:
- send a first operation, administration, and maintenance OAM packet (OAM) packet using the working SR-TE tunnel;
- the intermediate node is configured to:
- receive, using the working SR-TE tunnel, the first OAM packet sent by the first PE node,
- encapsulate identification information in the first OAM packet to obtain a second OAM packet, wherein the identification information identifies that signal degradation (SD) occurs in the working SR-TE tunnel, wherein the second OAM packet is a continuity check message (CCM);
- and
- the second PE node is configured to:
- receive, using the working SR-TE tunnel, the second OAM packet,
- determine, based on the identification information, that the SD occurs in the working SR-TE tunnel.
A communication method, implemented by an intermediate node, comprising:
- receiving, using a segment routing traffic engineering (SR-TE) working tunnel, a first operation, administration and maintenance (OAM) packet from a first provider edge (PE) node;
- encapsulating identification information in the first OAM packet to obtain a second OAM packet, wherein the identification information identifies that signal degradation (SD) occurs in the working SR-TE tunnel, wherein the second OAM packet is a continuity check message (CCM), wherein the intermediate node is between the first PE node and a second PE node on the working SR-TE tunnel, and the first PE node is an ingress node of the working SR-TE tunnel, the second PE node is an egress node of the working SR-TE tunnel;
- and
- sending the second OAM packet to the second PE node using the working SR-TE tunnel.
Dependencies are inferred from the claim text.