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Adaptation scheme for communications traffic

A technology of communication protocol and communication system, which is applied in the field of forming stack general framing procedure and frame classification system

Active Publication Date: 2013-09-11
BRITISH TELECOMM PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in EP 181068, in order to extract a packet from a concatenated packet, the entire concatenated packet must be deconcatenated

Method used

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  • Adaptation scheme for communications traffic
  • Adaptation scheme for communications traffic
  • Adaptation scheme for communications traffic

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Embodiment Construction

[0075] The best mode for carrying out the present invention will be described below. Those skilled in the art will understand that the description of the present invention has been simplified for clarity, and those features that those skilled in the art would have thought of or already known may not be explicitly mentioned, because their implementation is essential, and these features will are implicitly included in the description of the present invention. The description may also omit mentioning alternative features, which are functionally equivalent to the features mentioned here.

[0076] Attached figure 1 A GFP frame format known in the art is shown, which can be modified for use as an adaptation layer according to embodiments of the present invention. The GFP frame format has the characteristics of the protocol defined in the G.7041 standard established by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T), the content of which i...

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Abstract

A communications network provides a carrier Ethernet service without requiring the client signal to be identified by an Ethertype in a carrier Ethernet frame. A plurality of differing types of client signals can thus be encapsulated within the same carrier Ethernet service channel by using a generic framing procedure adaptation layer. The client signals are adapted for encapsulation within the carrier Ethernet frames by mapping the client signal within a generic framing procedure adaptation layer signal and then by mapping the generic framing procedure adaptation layer signal into the carrier Ethernet signal. As the client signal is identified within said generic framing procedure signal only a generic framing signal Ethertype is required. The mapping protocol enables a single Ethernet frame to carry a plurality of client signals.

Description

technical field [0001] The present invention relates to a method of forming a stack generic framing procedure frame hierarchy. [0002] Specifically but not exclusively, the GFP hierarchy can provide an adaptation layer for the Ethernet communication protocol. The GFP adaptation layer enables carrying multiple client traffic on a bearer Ethernet network without indicating each type of client traffic in the Ethernet frame header. [0003] In particular but not exclusively, the present invention relates to enabling GFP to be carried over GFP to separate control domains of different operators of a communication network and / or to enable GFP multiplexing. Background technique [0004] European patent application EP 181068 entitled "Method and Device for Generic Framing Procedure Encapsulation" describes how to concatenate multiple protocol data units (PDUs) into concatenated packets, which are then encapsulated in GFP in frame. Also described is an apparatus for GFP encapsulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46
CPCH04L12/4633
Inventor 尼尔·哈里森艾伦·麦奎尔
Owner BRITISH TELECOMM PLC
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