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A method for realizing the AAL2 interconnection in equipment

An in-equipment and channel technology, applied in the ATM field, achieves the effect of simplicity, cost-effectiveness, and small modification

Inactive Publication Date: 2007-10-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide a method for realizing AAL2 intercommunication in equipment to solve the problem of AAL2 intercommunication in equipment

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  • A method for realizing the AAL2 interconnection in equipment
  • A method for realizing the AAL2 interconnection in equipment
  • A method for realizing the AAL2 interconnection in equipment

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Embodiment Construction

[0036] The basic principle of the present invention is to divide the CID parameters of the AAL2 Packet (AAL2 grouping) into two pairs, and when an AAL2 instance in the device sends an AAL2 Packet to another AAL2 instance in the device, its CID parameter is one of the above paired parameters. One, when receiving an AAL2Packet sent by another AAL2 instance, its CID parameter is the other of the above paired parameters, so that the instances at both ends of the AAL2 link in the device can distinguish the Packet from the peer end from the Packet looped back by itself open.

[0037] To realize the above-mentioned AAL2 intercommunication in the equipment, it is necessary to solve the problems corresponding to the control plane and the user plane of AAL2 respectively.

[0038] The requirement for the control plane is to be able to establish an AAL2 link from the device to itself. In ATM, each device has its own network address, which is called AESA (ATM End System Address). It only...

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Abstract

The disclose method for AAL2 interconnection in facility comprises: a. the ATM adaption layer 2AAL2 entity-A toward Outgoing Procedures sends AAL2 Packet 1 to the AAL2 entity-B toward Incoming Procedures; b the said entity-B receives the AAL2 Packet 1, and sends AAL2 Packet 2 to entity-A, wherein the AAL2 Packet 1 and AAL2 Packet 2 carry different ATM channel mark CID. This invention changes a little on current system, has well stability and performance-price ratio, and holds the original openness.

Description

technical field [0001] The invention relates to the technical field of ATM (Asynchronous Transfer Mode), in particular to the technology of establishing AAL2 (ATM adaptation layer type 2) link in ATM. Background technique [0002] ATM is a transmission mode. In this mode, information is organized into cells. Because each cell containing information from a certain user does not need to appear periodically, this transmission mode is asynchronous. ATM cells are fixed-length packets (Packet). Digital information such as voice, data, and images are cut and packaged into cells of a unified format for transmission in the network and restored to the required format at the receiving end. [0003] Because ATM technology simplifies the exchange process, removes unnecessary data verification, and adopts an easy-to-handle fixed cell format, the exchange rate of ATM is much higher than that of traditional data networks. At the same time, ATM has become one of the important bearing platfo...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/08H04L29/06
Inventor 汪大海
Owner HUAWEI TECH CO LTD
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