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A self-adapting regulation method, device and system of message tunnel slicing

A self-adaptive adjustment and message technology, applied in the field of communication, can solve the problems of the performance impact of the tunnel start point and the tunnel end point, and achieve the effect of improving processing performance and reducing tunnel fragmentation

Inactive Publication Date: 2008-07-09
NEW H3C TECH CO LTD
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Problems solved by technology

However, the above-mentioned scheme of active detection by the tunnel starting point must periodically send detection messages to get close to the real understanding of the tunnel MTU, but it cannot achieve real-time response in a real sense; at the same time, periodic message sending processing and Packet response processing will affect the performance of the tunnel start point and tunnel end point

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  • A self-adapting regulation method, device and system of message tunnel slicing

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described here are for illustration only, and are not intended to limit the present invention.

[0037] First of all, it should be noted that the technical solution provided by the present invention is used to overcome the problem of fragmentation of IPv6 messages in IPv6 in IPv4 tunnels, while the specific operations of entering the tunnel, forwarding and exiting the tunnel for IPv6 messages continue to use existing technology to deal with. At the same time, it should be pointed out that the tunnels mentioned in the following descriptions all refer to IPv6 in IPv4 tunnels.

[0038]For the existence of the fragmentation problem in the tunnel, the tunnel termination point must deal with IPv4 fragmentation reassembly, which affects the tunnel forwarding performance. Because judging whether a packet is fragmented after tunnel encapsulation requires a l...

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Abstract

The invention discloses an adaptive adjustment method and a device for message tunnel fragmentation, which are applied in IPv6 in IPv4 tunnel, wherein, the method comprises that: when the terminal point of the tunnel receives an IPv4 fragmentation message, the length of the first IPv6 message sealed by the IPv4 message is identified and the source address of the sealed IPv6 message is extracted; an adjustment instruction carrying the IPv6 message length is sent to the source address device to lead the source address device to adjust the IPv6 PMTU of the outlet according to the IPv6 message length and avoid the subsequent message tunnel fragmentation. The invention further discloses an adaptive adjustment system of message tunnel fragmentation. The invention reduces the tunnel fragmentation of the message in the IPv6 in IPv4 tunnel, and improves the forwarding performance of the tunnel and the processing performance of the start point and the terminal point of the tunnel; meanwhile, the invention has the advantages of real-time performance, simplicity and easy practice.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an adaptive adjustment method and an adaptive adjustment device for message tunnel fragmentation, and an adaptive adjustment system for message tunnel fragmentation. Background technique [0002] The use of IPv6 in IPv4 tunnel technology can realize the intercommunication of IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) network across the IPv4 (Internet Protocol Version 4, Internet Protocol Version 4) network. Its working principle is: the IPv6 data The packet header of IPv4 is encapsulated before the message, and the IPv6 message is passed through the IPv4 network through the tunnel (Tunnel), so as to realize the intercommunication of the IPv6 network. [0003] Figure 1A and Figure 1B show the networking situation of IPv6 in IPv4 manual tunnel and IPv6 in IPv4 automatic tunnel respectively, and the processing procedure of its tunnel message is as follows...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/12H04L12/56H04L45/741
Inventor 王佩龙毛昱
Owner NEW H3C TECH CO LTD
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