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Message order-preserving method and device thereof

A message sequence preservation and message technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as failure of the sequence preservation function, failure to consider abnormal processing status of business flows, dead messages, etc. The effect of perfect order strategy and stable and effective order preservation function

Inactive Publication Date: 2010-06-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this solution is that it does not consider the abnormal processing status of the business flow. The update granularity of the effective sending sequence number of the business flow is fixed at 1. Resulting in the failure and death of the order preservation function or the jitter of the message

Method used

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  • Message order-preserving method and device thereof
  • Message order-preserving method and device thereof
  • Message order-preserving method and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Please refer to the attached Figure 5 , which is the message sequence protection device in this example, including the following units:

[0033] C1: interface unit 501, the interface completes the receiving and sending of messages, and the received messages can be sent to multiple cores / threads in the multi-core processor unit 502 for processing according to certain rules, or sent from multiple cores / threads in 501 Core / thread messages.

[0034] C2: multi-core processor unit 502: a multi-core processor unit that receives messages from the interface board 501, completes the processing, forwarding and order preservation of the messages, and sends them to the interface unit 501 for outward transmission; Each core / thread realizes completely consistent functions, logically including units C3-C7.

[0035] C3: flow classification identification unit 503: used for business flow division, divide different packets into different service flows according to given rules, and set ...

Embodiment 3

[0050] in the attached Figure 7 In another implementation mode of the present invention, this implementation mode takes into account possible software or hardware problems in actual network devices, which may cause packet processing time to be too long, or enter a dead state. Add the judgment of whether the Chinese language of the order-guaranteed processing has timed out. If it has not timed out, the message will be forwarded, otherwise the message will be discarded. The specific steps are as follows:

[0051] Step 701~step 706 respectively and attached Figure 6 Step 601 to step 606, step 708 to step 712 are completely consistent with step 607 to step 611 respectively, and will not be repeated here, only the newly added steps are described here:

[0052] Step 707: If the state of the message in step 706 is not discarded, enter step 707, judge whether the message is overtime, if overtime, need to discard the message (step 706), update the current sending sequence number tx_...

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Abstract

The present invention discloses a method and a device for preserving message sequence; the device comprises a flow classification and identification unit, a message processing unit, a flow state monitoring unit and a sequence-preserving, controlling and emitting unit. The flow classification and identification unit classifies the received messages into different business flows according to the specified rules and at the same time completes the multi-core and multi-thread load balancing distribution of message; the message processing unit processes the received message; the flow state monitoring unit is used for maintaining flow-state queues and identifying the processing state of the message and keeping the flow-state queues and the business flow queues corresponding to each other one to one; the sequence-preserving, controlling and emitting unit realizes the synchronization of message control and emission according to the message state vector in the flow-state queues and correspondingprocessing strategies. The present invention emits the sequence number through variable particle flow and at the same time has the sequence-preserving functions of the normal message and the abnormalmessage of business flow; the sequence-preserving strategy is improved and the sequence-preserving function is more stable and effective.

Description

【Technical field】 [0001] The invention relates to a method and a device for ensuring the order of message forwarding in communication equipment and network equipment. 【Background technique】 [0002] With the development of communication technology and network technology, communication equipment or network equipment (hereinafter collectively referred to as network equipment) is gradually advancing towards full IP (Internet Protocol, Internet Protocol); one of the most basic functions of network equipment is to forward IP packets. Many upper-layer service packets require the network device to strictly guarantee the order of the packets during transmission, that is, the order in which the same data flow enters the network device and leaves the network device should be strictly the same. [0003] In order to improve the overall performance of the system, current network devices usually use multi-core multi-hardware thread chips for message forwarding, and the order preservation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/863
Inventor 姚俊郭树波刘志远
Owner ZTE CORP
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