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Method, media gateway and system for processing MPLS packet

A media gateway and packet processing technology, applied in the field of communication, can solve problems such as waste of network resources, small proportion of voice frames, and low bandwidth utilization, and achieve the effects of improving bandwidth utilization, avoiding waste, and reducing packet header overhead

Active Publication Date: 2010-02-24
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to propose a method for processing MPLS packets, a media gateway and a system to improve bandwidth for the small proportion of voice frames in voice data packets in the prior art, low bandwidth utilization, and serious waste of network resources. Utilization, saving network resources

Method used

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  • Method, media gateway and system for processing MPLS packet
  • Method, media gateway and system for processing MPLS packet
  • Method, media gateway and system for processing MPLS packet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment is divided into two parts, including: a processing part in which data packets are transmitted from the external network to the MPLS network and a processing part in which MPLS packets are transmitted from the MPLS network to the external network. The contents of the above two parts are described in sequence below.

[0043] figure 2 This is a flow chart of the MGW at the MPLS network entrance processing the external network data packets when the data packets are transmitted from the external network to the MPLS network in the method for processing MPLS packets in Embodiment 1 of the present invention. like figure 2 As shown, this embodiment includes:

[0044] Step S101: Receive data packets from an external network;

[0045] Step S103: obtaining the destination port number of the data packet;

[0046] Step S105: map the destination port number of the data packet to the label of the MPLS packet;

[0047] Step S109: Send the MPLS packet to the MPLS n...

Embodiment 2

[0055] This embodiment is divided into three parts, including: a processing part for transmitting data packets from an external network to an MPLS network, a processing part for transmitting MPLS packets in the MPLS network, and a processing part for transmitting MPLS packets from the MPLS network to the external network. The contents of the above three parts are described one by one below.

[0056] Figure 4 This is a flowchart of the MGW at the MPLS network entrance processing the external network data packets when the data packets are transmitted from the external network to the MPLS network in the method for processing MPLS packets in the second embodiment of the present invention. like Figure 4 As shown, this embodiment includes:

[0057] Step S201: Receive data packets from an external network;

[0058] Step S203: obtaining the destination IP address and destination port number of the data packet;

[0059] Step S205: determine whether there is an FEC corresponding t...

Embodiment 3

[0084] In this embodiment, the technical solution of the present invention will be described in detail by taking the transmission of voice data packets as an example.

[0085] Table 2 shows the overhead of MPLS packets including voice frames in the prior art. Compared with Table 1, an inner layer label L1 (4 Bytes) and an outer layer label L2 (4 Bytes) are added. In addition, the transmission of MPLS packets in the network also needs to increase the overhead of the data link layer and the physical layer, resulting in low bandwidth utilization and serious waste of network resources.

[0086] Table 2 Overhead of MPLS grouping in the prior art

[0087] L2

L1

IP header

UDP header

RTP header

G.729 speech frame

4Byte

4Byte

20Byte

8Byte

12Byte

20Byte

[0088] During a call connection process, the call signaling protocol BICC, SIP and other protocols instruct the MGW to establish a correspondence between the circuit i...

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Abstract

The invention discloses a method, a media gateway and a system for processing an MPLS packet and relates to data transmission between an external network and an MPLS network. The method comprises the following steps that: a media gateway at an entrance to the MPLS network acquires a corresponding destination port number according to a data packet of the external network and maps the destination port number to a label of the MPLS packet to transmit the destination port number is transmitted in the MPLS network; and the media gateway at the entrance to the MPLS network converts the label of theMPLS packet into the destination port number corresponding to the data packet of the external network and transmits the data packet to the destination port. The method, the media gateway and the system have the advantages of being compatible with the prior networks, and effectively overcoming the defects of small ratio of speech frame, low bandwidth utilization ratio and serious waste of network resources of the speech data packet of the prior art under a condition of not increasing system complexity.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method, a media gateway and a system for processing MPLS packets between an external network and a Multi-Protocol Label Switch (MPLS for short) network. Background technique [0002] MPLS technology is an integrated data transmission technology. It not only supports multiple protocols at the network layer, but also is compatible with multiple technologies at the data link layer. IP routers using MPLS technology and switches such as ATM and FR are collectively referred to as Label Switching Routers (LSR). The network using LSR relatively simplifies the complexity of the network layer, is compatible with existing mainstream network technologies, and reduces network upgrades. cost. [0003] In an MPLS network, data packets at the ingress LSR are divided into different Forwarding Equivalence Classes (FECs) according to different forwarding requirements. Service flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/66H04L45/50
Inventor 葛澍孙金霞尤梦
Owner CHINA MOBILE COMM GRP CO LTD