Link management method

A link management and routing technology, applied in the field of optical communication, can solve problems such as complex operation and maintenance, and achieve the effect of simple maintenance, easy implementation, and reduced message interaction

Inactive Publication Date: 2005-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] In order to solve the problem in the prior art that LMP link management needs to maintain all control channels so that the operation and maintenance are more complicated, the present invention provides a link management method, which can make link management simpler and more effective

Method used

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Embodiment Construction

[0051] In this specific embodiment, the predetermined protocol referred to is the LMP protocol, and the predetermined protocol message referred to is the LMP protocol message, which is different from the control channel of the prior art LMP protocol logic. The following control channel refers to the physical control channel, that is, between nodes Actual transport channel for interactive link management messages. The link management method of the present invention is implemented based on the LMP protocol. Different from the prior art, the LMP link management in the present invention will no longer maintain and manage its own control channel, but only maintain the adjacency relationship between nodes.

[0052] refer to image 3 As shown, a specific embodiment applied in the automatic switching optical network is used for description. The automatic switching optical network includes a plurality of nodes, and the nodes communicate with each other through data links. As introduced...

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Abstract

The present invention discloses one kind of link management method for automatic exchange optical network. The automatic exchange optical network includes several nodes. The method includes the following steps: a) establishing the node adjoining relation; b) maintaining the node adjoining relation via transmitting the first message of preset protocol among nodes; and c) transmitting preset protocol message among node with adjoining relation in routing mode to manage the links. Compared with available technology, the present invention maintains the adjoining relation, rather than control passage, and has reduced message interaction, reduced system load and simple link management and maintenance.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a link management method suitable for ASON (Automatically Switched Optical Network). Background technique [0002] Optical network includes SDH / Sonet (Synchronous Digital Hierarchy / Synchronous Optical Network), wavelength network, etc. The traditional optical network is based on centralized management, and nodes (or called network elements) use permanent connections to realize communication. The adoption of the above-mentioned permanent connection method has achieved good results in the initial stage of optical network development because of its simple design and low cost. However, the establishment, maintenance, and removal of optical connections in the permanent connection mode require manual or network management system intervention. With the continuous growth of data traffic, this connection mode can no longer meet the requirements for dynamic and flexible conf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 周子浩李旺
Owner HUAWEI TECH CO LTD
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