Transmission equipment service panel bus selecting method

A technology for bus selection and transmission equipment, applied in transmission systems, bus networks, selection devices, etc., can solve problems such as service interruption, unrecoverable, errors, etc., and achieve the effect of preventing service interruption or interruption and improving reliability.

Active Publication Date: 2008-04-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the service board selects the bus according to this control signal at this time, an error may occur, which may cause a momentary interruption of the service or even fail to recover.

Method used

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  • Transmission equipment service panel bus selecting method
  • Transmission equipment service panel bus selecting method
  • Transmission equipment service panel bus selecting method

Examples

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Embodiment Construction

[0033] The method of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0034] Embodiment: Take SDH transmission equipment as an example, but the present invention is not limited thereto, and an optical line board is a main service board. The cross-connect board is a service control board. The service and overhead are mainly transmitted between the optical line board and the cross-connect board through the backplane service bus and the overhead bus. The business and overhead adopt a dual-bus structure, that is, the active and standby two cross-connect boards realize 1+1 protection. The judgment basis of the cross-connect board service overhead bus mainly includes: mandatory bus selection, cross-connect board presence status, cross-connect board heartbeat, cross-connect board The service readiness of the service board and the alarm status on the backplane side of the service board. Whether the serv...

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Abstract

A selection method of transmission equipment business board bus is used in the system with a main and a secondary business control board and a dual bus connection between the main and the secondary business control board and the business board. The method includes the following steps: (a) before each bus selection judgment, the business board judges message received by a backboard about whether relevant units of the main and the secondary control board business processing are ready and preserves the prior status after judgment; (b) in the bus selection judgment course, use the preserved prior status as the basis about whether the main and the secondary control board business processing relevant units received by the backboard bus are ready and the bus selection judgment. The invention can effectively improve the reliability of transmission equipment business board bus selection.

Description

technical field [0001] The invention relates to a bus selection technology of a transmission equipment service board in the field of optical transmission communication, in particular to a method for selecting a transmission equipment service board bus. Background technique [0002] The optical transmission service board is an important single board of optical transmission equipment. Its main function is to perform data conversion on transmission service signals, alarm, overhead processing, and pointer adjustment. The service control board mainly performs cross-connection on services and protection of related services. The service board and the service control board mainly carry out the transmission of business and related control information through the backplane bus. The existing technology of transmission equipment adopts a dual-bus structure, that is, the main and standby service control boards realize 1+1 protection, which improves the reliability of the equipment. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L12/02H04L1/22H04L12/40
Inventor 兰勇钢
Owner ZTE CORP
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