Flashing method of non-service cut-off of light transmission of link network

An optical transmission, chain-type technology, applied in the field of optical transmission, can solve the problem of difficult to guarantee uninterrupted services, and achieve the effect of simple operation process

Inactive Publication Date: 2005-01-12
南京创码科技有限责任公司
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  • Abstract
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  • Claims
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Problems solved by technology

If a detailed plan is not provided, it is difficult to ensure that the business will not be interrupt

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  • Flashing method of non-service cut-off of light transmission of link network
  • Flashing method of non-service cut-off of light transmission of link network
  • Flashing method of non-service cut-off of light transmission of link network

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[0036] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0037] figure 1 with figure 2 It has been explained in the background technology section.

[0038] image 3 It is a schematic diagram of newly added network elements configured for multiplex section link protection. New network elements generally include the following situations: 1) The network element is already running on the network, but it does not originally belong to the multiplex section link. It can be added to the multiplex by adding a new board, replacing a single board, or using the original reserved optical port. Use a segment link; 2) The network element is already running on the network, but it was originally a relay device. 3) New equipment. image 3 The network element D of (A) belongs to the situations described in 1) and 3). image 3 (B) belongs to the situation described in 2). The method proposed by the present invention is applicable t...

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Abstract

In the method, under new added time slot of net element is configured in advance, operation in working channel is rearranged to multiplexing link for protection. Then, optical fiber in working channel is rearranged to new net element. Finally, the operation is rearranged back to the working channel so as to complete dilatancy and upgrading step by step. In updating procedure, optical fiber in protection channel is operated at original connection mode maintained, thus, traffic operation is not interrupted. In procedure of rearranged back to the working channel, time slot of net element is configured in advance, thus traffic operation is also not interrupted.

Description

technical field [0001] The invention relates to the field of optical transmission, in particular to a method for expanding the capacity of an optical transmission network. Background technique [0002] Optical transmission chain network has been widely used in the field of telecommunications. ITU-TG.841 Recommendation "Classification and Characteristics of SDH Network Protection Structure" describes the self-healing function of SDH / SONET optical transmission chain network in detail. Among them, the 1+1 or 1:N protection of the multiplex section link is the main self-healing mode of the chain network. [0003] figure 1 It is a schematic diagram of the protection principle of the multiplex section link protection 1+1 mode. Normally, such as figure 1 As shown in (A), the working service between network elements A and B is transmitted through the working and protection channels at the same time, and it is determined which of the two channels to receive the service according ...

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Application Information

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IPC IPC(8): H04B1/74H04B10/12H04J14/02
CPCH04J14/0283H04J14/0279H04J14/028H04J14/029H04B10/25H04B10/27
Inventor 孙德胜
Owner 南京创码科技有限责任公司
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