Negotiation method of maximum segmentation parameters and network forwarding equipment

A technology of network forwarding and maximum segmentation, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of packet discarding, and achieve the effect of improving the success rate

Inactive Publication Date: 2010-12-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a method for negotiating MSS parameters and a network forwarding device to solve the problem in the related art that messages are discarded due to inappropriate setting of MSS parameters

Method used

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  • Negotiation method of maximum segmentation parameters and network forwarding equipment
  • Negotiation method of maximum segmentation parameters and network forwarding equipment
  • Negotiation method of maximum segmentation parameters and network forwarding equipment

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Experimental program
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Embodiment Construction

[0028] Functional Overview

[0029] Aiming at the problem that the data packet is discarded due to improper setting of the MSS parameter value in the related art, and thus the message transmission is unsuccessful, an embodiment of the present invention provides a method for negotiating MSS parameters. In the embodiment of the present invention, when the network forwarding device forwards the message carrying the TCP connection message, it adjusts the MSS parameters in the TCP connection message according to its own MTU value and the interface MTU value of its next hop device, and Send the adjusted TCP connection message, so that the MSS parameters negotiated between the client and the server are within the processing capabilities of all network forwarding devices between the client and the server.

[0030] It should be noted that in the embodiment of the present invention, the network forwarding device includes figure 1 The PE equipment and / or P equipment shown.

[0031] In the case...

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Abstract

The invention discloses a negotiation method of maximum segmentation parameters and network forwarding equipment. The method comprises the following steps of: intercepting a message carrying a TCP (Transmission Control Protocol) connection message between a client and a server in a network by the network forwarding equipment; acquiring a preliminarily stored interface MTU (Maximum Transmission Unit) value of next hop equipment by the network forwarding equipment; and adjusting an MSS (Maximum Segment Size) parameter carried in the TCP connection message according to the interface MTU value of the network forwarding equipment and the interface MTU value of the next hop equipment and sending the adjusted TCP connection message. The invention can avoid the occasion of data packet discarding since the messages are beyond the processing capacity of the equipment and improve the success ratio of message forwarding.

Description

Technical field [0001] The present invention relates to the field of mobile communication technology, and in particular to a method for negotiating a maximum segment size (Maximum Segment Size, referred to as MSS) parameter and a network forwarding device. Background technique [0002] In the current network based on tunnel forwarding, especially for users with IP access, the phenomenon of unable to open web pages or slow Internet access may often occur. This phenomenon is mainly due to the fact that TCP packets are in the middle after entering the tunnel. The interface of the forwarding device is discarded. [0003] figure 1 It is the network structure diagram of the current Multi-Protocol Label Switching (MPLS). In order to achieve the best transmission performance, the TCP protocol usually negotiates the MSS value of both parties when establishing a connection. The client and the server pass The three-way handshake negotiates the MSS value, the specific process is as follows: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/17
Inventor 王新
Owner ZTE CORP
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