Negotiation method of link capability information, network equipment and communication system

A technology of capability information and network equipment, which is applied in the negotiation of link capability information and in the field of communication systems, can solve the problems of heavy workload and low efficiency, and achieve the effects of improving efficiency, reducing workload, and reducing manual participation

Active Publication Date: 2013-06-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the link capability information in the prior art is mainly realized through manual configuration, since there are many high-order ODU links in the network, the workload of manual configuration is very large and the efficiency is low

Method used

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  • Negotiation method of link capability information, network equipment and communication system
  • Negotiation method of link capability information, network equipment and communication system
  • Negotiation method of link capability information, network equipment and communication system

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Embodiment Construction

[0040]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] figure 1 It is a schematic flowchart of the method for negotiating link capability information provided in the first embodiment of the present invention. The application scenario of this embodiment is: after a high-order ODU link is established between any two nodes in the OTN, the two nodes at both ends of the high-order ODU link perform negotiation on the high-order ODU link capability. The execution subject of the method for negotiating link capabili...

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Abstract

The present invention relates to a method for negotiating link capability information, a network device, and a communication system. The method includes: After a higher order optical channel data unit (ODU) link is established, a second node receives first higher order ODU link capability information supported by a first node at one end of the link, where the second node is located at the other end of the link; determines link capability information according to the first higher order ODU link capability information and second higher order ODU capability information that is supported by the second node; and sends the link capability information to the first node; or sends the second higher order ODU link capability information to the first node, so that the first node determines the link capability information according to the first higher order ODU link capability information and the second higher order ODU capability information. According to the embodiments of the present invention, efficiency of negotiating the higher order ODU link capability information is improved.

Description

technical field [0001] The invention relates to communication technology, in particular to a negotiation method, network equipment and communication system for link capability information of high-order optical channel data units. Background technique [0002] Optical Transport Network (OTN) is a transparent transmission technology developed to meet the large-capacity and coarse-grained scheduling requirements at the backbone network level. With the release of different versions of the OTN standard, the types of signals supported by the OTN are also continuously enriched. The old OTN standard (ITU-TG.709 Amendment1) defines three signal types: ODU1, ODU2, ODU3, the bandwidth is 2.5Gb / s, 10Gb / s, 40Gb / s respectively, and the time slot type it supports is 2.5Gb / s. On the basis of the old OTN standard, in the new OTN standard (ITU-T G.709Amendment3 and G.sup43), ODU1, ODU2 and ODU3 also support 1.25Gb / s time slot type, and the new OTN standard also proposes to support 1.25 Ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04Q11/00
CPCH04J3/12H04J2203/0058H04J3/1652
Inventor 林毅资小兵吴秋游
Owner HUAWEI TECH CO LTD
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