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Method and apparatus for multiplexing and demultiplexing Ether message

A technology of demultiplexing and packet demultiplexing, which is applied in the field of network and communication, can solve the problems of wasting network resources, not supporting packet priority, and high software complexity, so as to avoid the occupation of additional resources, improve the utilization rate of network resources, The effect of saving network resources

Active Publication Date: 2009-07-01
HONOR DEVICE CO LTD
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Problems solved by technology

[0007] This technology has the following defects: due to the existence of IP header and UDP header at the same time, some network resources are wasted; in addition, because FPMux technology is compatible with Ethernet and PPP at the same time, because SDH / PDH networks using PPP no longer have development prospects, and for Ethernet bearer The network will not need to support PPP, so if it is compatible with PPP, some network resources will be wasted
[0009] This technology has the following defects: it only supports fixed-length packet encapsulation, which is inflexible; even for small voice packets, it needs to occupy multiple TDM Segments (the typical length of voice packets is 22 bytes); it does not support message priority; it uses TDM The microcode implementation of the technology is more complicated, and the software complexity is high, which may require special hardware implementation; network transmission requires E1 / T1 similar accurate clock guarantees, and the cost is relatively high

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  • Method and apparatus for multiplexing and demultiplexing Ether message
  • Method and apparatus for multiplexing and demultiplexing Ether message
  • Method and apparatus for multiplexing and demultiplexing Ether message

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Embodiment Construction

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

[0034] image 3 It is a schematic structural diagram of the Ethernet packet involved in the embodiment of the present invention. The description of the Ethernet message is as follows:

[0035] 1. DMAC represents the traditional destination MAC address, 6 bytes long;

[0036] 2. SMAC means traditional source MAC address, 6 bytes long;

[0037] 3. VLAN TAG (Optional, optional) means traditional 802.1p / q, 4 bytes long;

[0038] 4. Service Tag indicates that the message is an Ethernet Mux message, and at the same time provides QoS and message order protection functions. The description of the internal field is: TYPE indicates the payload type, 0x9910, demultiplexing (DMux) flag, 2 bytes Long; Pri represents priority information, similar to DSCP, and its length is 3bit long in this embodiment; Res represents the reserve...

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Abstract

The embodiment of the invention relates to an ether message multiplexing and de-multiplexing method and a device. The embodiment of the ether message multiplexing method comprises the following steps: receiving a sub message to be encapsulated; judging whether the sum of the length of the sub message to be encapsulated and the length of an ether message multiplexed is larger than the predetermined maximal allowable transmission length preset of the ether message when the length of the sub message to be encapsulated is less than or equal to the predetermined maximal allowable transmission length of the payload unit of the sub message; carrying out ether encapsulation and transmission to the ether message multiplexed if the sum of the length of the sub message to be encapsulated and the length of the ether message multiplexed is larger than the predetermined maximal allowable transmission length of the ether message; multiplexing the sub message to be encapsulated into the payload unit of the sub message of the ether message multiplexed if the sum of the length of the sub message to be encapsulated and the length of the ether message multiplexed is not larger than the predetermined maximal allowable transmission length of the ether message, and accumulating the length of the sub message to be encapsulated and the load length of the ether message multiplexed to obtain the load length of the current ether message. The embodiment of the invention improves the transmission efficiency of packet services and other messages and enhances the multiplexing flexibility of the messages.

Description

technical field [0001] The invention belongs to the technical field of networks and communications, and relates to methods and equipment for multiplexing and demultiplexing Ethernet messages. Background technique [0002] With the development of all-IP and flattening of the network, ATM technology has been eliminated, and the construction of SDH / PDH network using Point to Point Protocol (PPP) technology is about to stop. It has made great progress, and it is a trend of network development to use Ethernet (Ethernet) to bear the transmission of small packet services such as wireless voice. [0003] A prior art adopts the frame encapsulation protocol (Frame Protocol, FP for short) multiplexing (Mux for short) technology on the wireless UDP layer to realize the transmission of small packet services. The FPMux technology is a multiplexing technology using the User Datagram Protocol (UDP) layer between a base station (Radio Network Controller, referred to as RNC) and a 3G base st...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L47/43
Inventor 王毅
Owner HONOR DEVICE CO LTD
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