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An upgrade method of optical synchronization digital transmission network system

An optical synchronous digital and transmission network technology, applied in time division multiplexing systems, time division multiplexing usage, electrical components, etc., can solve the problems of long upgrade process, long-term business interruption and cumbersome upgrade process, and achieve a simple upgrade process , Improve the stability and upgrade efficiency, and shorten the upgrade time.

Inactive Publication Date: 2007-11-28
ZTE CORP
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an optical synchronous digital transmission network system upgrade method, which is used to overcome the problem of long-term service interruption and / or cumbersome and long upgrade process when optical transmission equipment uses the existing upgrade technology shortcoming

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  • An upgrade method of optical synchronization digital transmission network system

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Embodiment Construction

[0027] Please refer to FIG. 1 , which is a flowchart of a smooth upgrade of an SDH system according to the present invention. The process includes the following steps:

[0028] Step 101, unplug the low-rate optical interface unit to be upgraded, and replace it with a high-rate optical interface unit; this step is specifically:

[0029] Unplug the low-speed optical interface unit of the SDH equipment connected to both ends of a certain network segment in the network; and

[0030] Unplug the low-rate optical interface unit from the corresponding slots at both ends of the SDH equipment, and replace it with a high-rate optical interface unit.

[0031] In this step, the backplane bus rate of the replaced high-rate optical interface unit may be different from the backplane bus rate of the original low-rate optical interface unit.

[0032] Step 102, the cross-connect processing unit detects the change in the rate of the backplane bus, and automatically adjusts the distribution of t...

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Abstract

The invention discloses an updating method of optical synchronous digital transmitting network system for SDH network system, which comprises the following steps: 1. changing the updated low-speed optical interface at two ends of SDH network system into high-speed optical interface unit; 2. testing the back board bus velocity variation through crossing disposing unit connected with optical interface unit; modulating the distribution of time interval allocation on the low-speed bus business into the distribution on the high-speed bus according to the variation of back board bus speed automatically; 3. repeating the step 1 and step 2; changing the low-speed optical interface unit at two ends of network end into high-speed optical interface unit; 4. handing out network allocating information and protection information of allocation information of high-speed network for network equipment of the updated high-speed optical interface unit. The invention ensures the SDH equipment updating without influencing for business, which simplifies the updating course and shortens the updating time.

Description

technical field [0001] The invention relates to a method for upgrading an optical synchronous digital transmission network system, in particular to a method for upgrading a low-rate SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) optical transmission network system to a high-rate SDH optical transmission network system. Background technique [0002] Existing optical transmission equipment can be upgraded from a low-rate system to a high-rate system through the design of a compatible backplane, and the subsequent development of a compatible board and related software. Since this upgrade process involves board replacement and software update, and the network protection function of the original system fails during the update process, it will cause the original normal running business to be interrupted, ranging from a few hours to a few days, resulting in network failures. Upgrades are expensive. [0003] According to the patent No. 5,570,344 published by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L5/24
Inventor 杨昭霞关鲁君陆波
Owner ZTE CORP
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