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Buffer area managing method based on SCTP end-point

A management method and buffer technology, applied in the field of network communication, can solve the problem that it is difficult to restore normal communication at both ends, and achieve the effect of ensuring the ability to restore normal communication, improving the RFC protocol, and improving the transmission capacity.

Inactive Publication Date: 2010-04-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The SCTP protocol stack can guarantee the reliability of coupled data transmission through the above-mentioned response mechanism. However, when the network is congested, abnormal or other phenomena occur, this response mechanism of the protocol stack will make the sending buffer and receiving buffer of the SCTP endpoint Store a large number of data blocks in
[0008] At present, when a large number of data blocks are stored in the sending buffer and receiving buffer of the SCTP endpoint, there is no specific management scheme for the buffer, so that when the network fails or is abnormal, it is difficult for both ends to restore normal communication

Method used

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Embodiment Construction

[0056] The core of the present invention is: SCTP-based endpoint A determines that it needs to transmit a FORWARD_TSN (forward transmission sequence number) message to its corresponding SCTP-based endpoint B, endpoint A determines its management requirements for endpoint B's receiving buffer, and endpoint A will manage It is required to be carried in the FORWARD_TSN message and transmitted to Endpoint B. Endpoint B manages its receiving buffer according to the management requirements carried by the received FORWARD_TSN message.

[0057] The following further describes the technical solution provided by the present invention based on the core idea of ​​the present invention.

[0058] SCTP-based endpoint A can transmit the current TSN of its sending buffer to its peer endpoint B through the FORWARD_TSN message when the current TSN of its sending buffer does not change according to the needs of the local end; endpoint A can also When the current TSN of the sending buffer is updated du...

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PUM

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Abstract

The invention provides a buffer management method based on SCTP terminal. Wherein, terminal A based on SCTP determines transmission SN information to relative B terminal also based on SCTP, and receive buffer management requirement to B; A makes management requirement and SN carried on front-send SN information and transmits to B; B executes management according to received data. This invention uses information in RFC protocol to make two buffers interactive in time, increases management flexibility and recovery rapidness, and perfects RFC protocol.

Description

Technical field [0001] The invention relates to the technical field of network communication, in particular to a buffer management method based on SCTP endpoints. Background technique [0002] SCTP (Stream Control Transmission Protocol) is located between the SCTP user application layer and the service layer of the connectionless network. The connectionless network can be an IP network or other networks. [0003] SCTP is located between the SCTP user application and the service layer of the IP network. figure 1 Shown. [0004] in figure 1 In, SCTP establishes a coupling between two SCTP endpoints to provide SCTP users with reliable coupled data transmission services. [0005] The process of data transmission through coupling between two SCTP endpoints is as attached figure 2 Shown. [0006] in figure 2 When the SCTP endpoint sends a data block, it temporarily stores the sent data block in the sending buffer. When receiving the SACK (selection confirmation) message transmitted by the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/56H04L12/861
Inventor 汪碧海
Owner HUAWEI TECH CO LTD
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