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Communication method and system between photo-timing transmission equipment master control board and business single plate

A technology of a service single board and a communication method, applied in the field of optical transmission, can solve the problems of inability to achieve compatibility with the old single board, waste of old equipment, and no consideration, to achieve economical and convenient upgrade problems, solve upgrade problems, and achieve forward Compatible Effects

Inactive Publication Date: 2008-12-10
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, a large number of SDH equipment produced in the past have used the HDLC protocol interface to realize the communication between the main control board and the service board, which is a fait accompli
After the new main control board and the new service board switch to the Ethernet communication mode, it can only communicate with the board using the same communication mode, without considering and unable to achieve compatibility with the old board, resulting in the failure of the old equipment a lot of waste

Method used

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  • Communication method and system between photo-timing transmission equipment master control board and business single plate
  • Communication method and system between photo-timing transmission equipment master control board and business single plate
  • Communication method and system between photo-timing transmission equipment master control board and business single plate

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Embodiment Construction

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and in combination with specific embodiments.

[0034] The main purpose of the present invention is to realize the forward compatibility of the old main control board and the old service single board which can only use the old communication mode when the main control board and the service single board of the SDH equipment adopt the new communication mode.

[0035] First, explain the meaning of some English abbreviations used below: comm_mode_old: the old communication mode between the main control board and the service board (this communication mode is supported by all boards)

[0036] comm_mode_new: The new communication mode between the main control board and the service board (this communication mode is only supported by the new board)

[0037] cmd_A: The service board reports all the communication mode commands it supports to the main control board

[0038] c...

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Abstract

The invention discloses a communication method between a master control board of a phototiming transmission device and an operation single board and a system thereof, wherein the master control board and the operation single board all support a first communication mode, and at least one of the master control board and the operation single board supports a second communication mode. The communication method comprises the following steps: A. after the master control board and the operation single board are power on and started, the communication is performed through the first communication mode; B. the master control board and the operation single board perform the communication mode negotiation, to determine whether the both support the second communication mode, if true, the master control board and the operation single board are switched to the second communication mode for communicating. The communication system includes a negotiation module in the communication mode and a switching module in the communication mode. The invention realizes the front compatible on the phototiming transmission device and the operation single board.

Description

technical field [0001] The invention relates to the field of optical transmission, in particular to a communication method and system between a main control board of optical synchronous transmission equipment and a service single board. Background technique [0002] In optical transmission equipment, users manage the entire network through the network management, including management, configuration, and maintenance of each specific board. Among them, the service board cannot directly communicate with the network management system, but the bridge of the main control board connects the two. Therefore, the communication between the main control board and the service board is very important. [0003] At present, the communication between the main control board and the service board in the SDH (Optical Synchronous Transmission) equipment generally adopts the high-level data link control (HDLC) protocol mode. With the long-term and wide application of Ethernet and TCP / IP protocol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/08H04B10/08H04L29/06
Inventor 罗胜金
Owner ZTE CORP
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