Method for applying link layer discovery protocol on synchronous digital hierarchy

A technology of synchronous digital system and link layer discovery, applied in digital transmission system, time division multiplexing system, multiplexing communication, etc., can solve the problems of low message processing speed and heavy CPU load of network management, and achieve Effects of reducing load and simplifying network element management

Active Publication Date: 2015-03-04
FENGHUO COMM SCI & TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For the implementation of network element management on two planes, the existing method is that the network management CPU needs to assemble and pa

Method used

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  • Method for applying link layer discovery protocol on synchronous digital hierarchy
  • Method for applying link layer discovery protocol on synchronous digital hierarchy
  • Method for applying link layer discovery protocol on synchronous digital hierarchy

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 2 As shown, the link layer discovery protocol is applied to the synchronous digital system, and is applied between the local network element and the remote network element. The internal systems of the local network element and the remote network element are the same, including the backplane, and the respective The network management disk, Ethernet line card and SDH line card connected to the board, the network management disk includes CPU, the Ethernet line card includes Ethernet uplink switch chip and FPGA, the SDH line card includes FPGA and SDH uplink chip, network management disk, Ethernet line card and SDH The line cards are interconnected through the management channel on the backplane.

[0021] The method that the link layer discovery protocol of the present invention is applied to the synchronous digital system ...

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Abstract

A method for applying a link layer discovery protocol on a synchronous digital hierarchy relates to the field of access network element band inside/outside management channel achievement. The method includes that a local web master disc constructs an LLDP message and inserts a marking field behind the VLAN field; a local SDH line card receives a message transmitted by the local web master disc and removes the marking field and restores to the LLDP message if the marking field is matched with the information of the local SDH line card; HDLC package is conducted after the restored LLDP message is packaged to be of the DCC frame structure, and the structure is mapped to the DCC channel of the SDH plane after twice of package; the far end SDH line car extracts the message of the DCC channel, if the message is the LLDP message, the marking field at the end is added and transmitted to the web master disc, and the far end web master disc processes the LLDP message. The web master information of the LLDP can be transmitted to the far end web element through the SDH plane, the CPU load of the web master is reduced, the message processing speed is improved, and the method is simple and flexible to apply.

Description

technical field [0001] The invention relates to the field of realization of in-band / out-of-band management channels of access network elements, and specifically relates to a method for applying a link layer discovery protocol to a synchronous digital system. Background technique [0002] At present, there are more and more types of access layer network devices and their respective configurations are intricate. In order to enable devices from different manufacturers to discover each other and exchange their own system and configuration information in the network, a standard information exchange platform is required. [0003] LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol) is produced under such a background, it provides a standard link layer discovery method, which can display the main capabilities of the local device, management address, device identification, interface Information such as identification is organized into different TLV (Type / Length / Value,...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/24H04J3/06
CPCH04J3/0623H04L41/046H04L69/22H04L69/324Y02D30/00
Inventor 张帆杨义才宋强
Owner FENGHUO COMM SCI & TECH CO LTD
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