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A dynamic equilibrium distributing method for port data flow

A technology of dynamic balance and data flow, which is applied in the field of communication, can solve the problems that the data flow of multiple ports cannot be dynamically balanced, data flow packet loss, etc., and achieve the effect of reducing packet loss and improving the traffic passing rate

Active Publication Date: 2009-04-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for dynamic balanced distribution of port data flow to solve the problem of packet loss in the prior art when the data flow increases suddenly due to the inability to dynamically balance the data flow of multiple ports

Method used

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  • A dynamic equilibrium distributing method for port data flow
  • A dynamic equilibrium distributing method for port data flow

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Embodiment Construction

[0018] refer to figure 1 As shown, the first port is port A, which is a high-speed port, and the traffic from port A is evenly distributed and then sent to four second ports (not limited to four) for parallel processing. The second ports are respectively ports B, C, D, and E, all of which are low-rate ports.

[0019] Due to the suddenness and unpredictability of traffic, when the traffic originally assigned to port B bursts and its rate exceeds 1 / 4 of the traffic on port A, packet loss will occur at this time. In this sudden situation, the present invention automatically transfers excess traffic to port C, D or E for processing, so as to avoid packet loss to the greatest extent and achieve the best performance. That is to say, which port the data flow goes to is dynamically adjusted according to the traffic conditions of the next four ports. If there is a lot of traffic, it will be dynamically allocated to the port with low traffic to maintain the traffic between the four por...

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Abstract

The dynamic balanced port data flow distributing method for distributing the data flow from one first port to several second ports includes: receiving the data package of data flow from the first port; judging whether the data flow has been initialized based on the label of the data flow and distributing one destination port for un-initialized flow while recording the corresponding relation; for initialized flow, judging whether to have jamming in the corresponding second port, and re-transmitting the data package from the corresponding second port if no jamming; in case of jamming, regulating the data flow to the next no-jamming second port for data package re-transmission, and recording the corresponding relation between the data flow label to the second port.

Description

technical field [0001] The invention relates to communication technology, in particular to a method for dynamic balanced distribution of port data flow. Background technique [0002] Distributing the data flow of a high-rate interface to several low-rate interfaces is a problem often encountered in data communication. For example, from a 2.5G port to four 622M ports, from a 10G port to four 2.5G ports, and from a 40G port to four 10G ports are typical examples. In order to ensure that all four ports can be processed at maximum capacity, it is necessary to ensure that the flows are balanced when allocating them to the four ports. [0003] In the existing technology, after the data flow is initialized, the data packets of the flow should be forwarded from a fixed port without adjustment. Although this method is simple, it is impossible to perform absolute static balanced distribution due to the burstiness of the data flow. , when the traffic increases suddenly and exceeds th...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/773
Inventor 叶锦华姚慧勇蒋治
Owner HUAWEI TECH CO LTD