SDH (Synchronous Digital Hierarchy) based wide-area peer-to-peer communication system and method

A technology of peer-to-peer communication and SDH equipment, which is applied in the field of wide-area communication, and can solve problems such as unfavorable maintenance, chaotic network architecture, and restrictions on power system business expansion

Active Publication Date: 2014-10-29
GUANGZHOU POWER SUPPLY CO LTD +1
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Problems solved by technology

[0004] Based on this, it is necessary to provide a transmission network service division efficiency for the existing SDH-based wide-area peer-to-peer communication system transmission network service division efficiency is low,

Method used

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  • SDH (Synchronous Digital Hierarchy) based wide-area peer-to-peer communication system and method
  • SDH (Synchronous Digital Hierarchy) based wide-area peer-to-peer communication system and method
  • SDH (Synchronous Digital Hierarchy) based wide-area peer-to-peer communication system and method

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0018] Such as figure 1 As shown, an SDH-based wide-area peer-to-peer communication system includes SDH equipment 100 and area protection and control equipment 200, wherein the SDH equipment 100 has a built-in EOS board, and the EOS board has an FE interface. The area protection and control device 200 is connected to the EOS board through the FE interface;

[0019] The area protection and control device 200 sends a multicast message to the EOS board through the FE interface, and the EOS board receives the multicast message, identifies the VLAN tag carried by the multicast message, and traverses the Self-VLAN con...

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Abstract

The invention provides an SDH (Synchronous Digital Hierarchy) based wide-area peer-to-peer communication system and method. An area protection and control device and an EOS board card of an SDH device are interacted through an FE interface due to the specific message switching capability of the EOS board card of the SDH device, the area protection and control device sends multicast messages to the EOS board card of the SDH device through the FE interface, the EOS board card receives and identifies a VLAN (Virtual Local Area Network) tag in the multicast messages and judges whether the VLAN multicast message exist in a VLAN configuration list or not; transmitting the VLAN multicast message if the VLAN multicast message exists and not transmitting if the VLAN multicast message does not exist. The integral system can greatly improve the network partition efficiency of an area protection and control system which is large in size and complex in communication relationship due to the fact that a one-send-multi-receive peer-to-peer communication mechanism is achieved on the SDH device and enables the area protection and control system to be provided with clear network architecture and later maintenance and management to be convenient.

Description

technical field [0001] The invention relates to the field of wide-area communication, in particular to an SDH-based wide-area peer-to-peer communication system and method. Background technique [0002] At present, the transmission network of the power system mainly uses SDH (Synchronous Digital Hierarchy) equipment for networking. SDH equipment is based on time division multiplexing technology for data transmission, and has the advantages of fixed service transmission bandwidth and high reliability. [0003] The power system transmits the multicast messages of the area protection and control system based on the transmission network. The existing area protection and control system mainly uses a dedicated 2M channel (E1 channel) for business division, which requires each area protection and control device to Provide multiple E1 channel interfaces to interact with SDH equipment, and SDH equipment also needs to open different dedicated channels for each E1 interface, which will ...

Claims

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Application Information

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IPC IPC(8): H04J14/02H04L12/46
Inventor 刘育权杨贵孙磊高宏俊刘金生费翔彭安崔兆阳
Owner GUANGZHOU POWER SUPPLY CO LTD
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