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A method for avoiding congestion of network equipment and network equipment

A technology for network equipment and congestion avoidance, applied in the field of communications, which can solve problems such as reduced throughput of network equipment

Active Publication Date: 2018-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a network device congestion avoidance method and a network device, which are used to solve the problem that in the prior art, after a network device receives a series of messages, it uses a random discrete packet loss method to discard the series of messages. The problem of reduced throughput of the network devices caused by packet processing

Method used

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  • A method for avoiding congestion of network equipment and network equipment
  • A method for avoiding congestion of network equipment and network equipment
  • A method for avoiding congestion of network equipment and network equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0140] The method for network congestion avoidance provided in this embodiment includes the following steps:

[0141] Step 1. When the length of the currently used storage queue is between the first threshold 20 and the second threshold 120, the network device determines whether to perform packet loss processing on the packets belonging to the same data flow in the currently used storage queue.

[0142] Specifically, this step includes:

[0143] (1) Obtain the random numbers of the packets in the above four TCP streams.

[0144] For example, at this time, the random numbers of the packets in the above four TCP flows are the random discard probabilities of the packets in the above four TCP flows. Further, it is assumed that the random discard probability of the above 30 messages is ai, where i represents the number of the message, 1≤i≤30; ai represents the random discard probability of the i-th message, 0≤ ai≤1.

[0145] (2) Determine the current first threshold.

[0146] E...

Embodiment 2

[0165] In this embodiment, if the length of the current storage queue is between the first threshold 20 and the second threshold 120, then the network device determines whether it is necessary to perform packet loss processing on the packets in the above four TCP streams by using another One way to achieve. In this embodiment, only the differences from Embodiment 1 are listed, and other parts may refer to the description in Embodiment 1, and details are not repeated here.

[0166] Specifically, the alternative steps of step 1 in Embodiment 1 may be:

[0167] Step 1. When the length of the currently used storage queue is between the first threshold 20 and the second threshold 120, the network device determines whether to perform packet loss processing on the packets belonging to the same data flow in the currently used storage queue.

[0168] Specifically, this step includes:

[0169] (1) Obtain the random numbers of the above 4 TCP streams.

[0170] For example, at this tim...

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PUM

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Abstract

The invention discloses a network device congestion avoidance method and a network device, which are used to solve the problem that in the prior art, after a network device receives a series of messages, it uses a random discrete packet loss method to process the series of messages. The problem caused by the reduced throughput of the network device. The method includes: the network device determines whether to discard packets belonging to the same data flow in the currently used storage space according to the size of the currently used storage space; wherein, the packets belonging to the same data flow The number of messages is N, and N≥2; when packet loss processing is required, the network device discards consecutive M messages belonging to the same data flow, where 1≤M≤N.

Description

technical field [0001] The invention relates to the communication field, in particular to a network equipment congestion avoidance method and network equipment. Background technique [0002] In a communication network, a network device receives a message sent by a sender, and forwards the message to a receiver. However, when the number of packets sent by the sender is large, the network device will be congested. Network device congestion avoidance is to monitor the usage of the storage space in the network device. When the congestion tends to intensify, some messages in the storage space will be discarded actively, and the data flow in the network device will be adjusted to relieve the congestion. The problem of network equipment congestion. [0003] In the current technology, the above-mentioned problems are generally solved by using a random early detection (Random Early Detection, RED for short) algorithm, a weighted random early detection (WRED for short) algorithm, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/823H04L47/32H04L47/30
CPCH04L47/30H04L47/32H04L47/12H04L43/0882H04L43/0888H04L43/16H04L47/18H04L47/326H04L47/6255
Inventor 李晋韩磊王浩
Owner HUAWEI TECH CO LTD
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