Flow transfer method and equipment

A traffic forwarding and flow technology, applied in the field of network communication, can solve the problems of reducing the utilization rate of equal-cost routes and the inability to make full use of equal-cost routes, so as to achieve the effect of improving the utilization rate

Active Publication Date: 2015-05-20
NEW H3C TECH CO LTD
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Problems solved by technology

so, in figure 2 , although there are 4 equal-cost routes from device A to the Internet, but based on the hardware capability limitation of device A, device A can only choose 2 of them to forward traffic to the Internet, while the other 2 equal-cost routes only for backup
This leads to the underutilization of equal-cost routes, greatly reducing the utilization of equal-cost routes

Method used

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  • Flow transfer method and equipment
  • Flow transfer method and equipment
  • Flow transfer method and equipment

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] In the present invention, in the scenario where there are N equivalent routes from device A to the destination, but device A only supports M equivalent routes, in order to improve the utilization rate of equivalent routes, that is, to make full use of the remaining N-M( N minus M) equal-cost routes, at least one device can be added in the network, wherein the device is added according to the following principle: the sum of the equal-cost routes to the destination supported by all the added devices is the remaining N-M equal-cost routes , and then select the route supported by the device from the remaining N-M equal-cost routes according to the increased hardware capability of each device. for example, figure 2 In , there are four equal-co...

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Abstract

The present disclosure relates to a traffic routing method and a traffic routing device. A member device of a stacking system receives traffic destined for a destination node. If there is at least one valid Equal-cost multi-path (ECMP) associated with an address of the destination node in a forwarding table, the member device routes the received traffic to the destination node through the at least one valid ECMP path. Otherwise, the member device selects at least one other member device of the stacking system for routing the received traffic, updates an ECMP path associated with the address of the destination node in the forwarding table to a stacking link connecting the member device with the selected at least one member device, and transmits the received traffic to the selected at least one member device.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a traffic forwarding method and equipment. Background technique [0002] In a network environment where the same destination address is reached through multiple different links, if traditional routing technology is used, the data packet sent to the destination address can only use one of the links, and the other links are in backup or invalid state. The Equal-Cost Multipath Routing (ECMP: Equal-Cost Multipath Routing) protocol can allow multiple links to be used simultaneously in the above-mentioned network environment, which not only increases the transmission bandwidth, but also realizes backup of failed links without delay and packet loss. data transmission. like figure 1 As shown in the figure, for user traffic accessing the Internet, there are three equal-cost routes to the Internet on the L3 switch. Based on this, the traffic accessing the Internet can be load-balance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L45/28H04L45/24H04L47/41
CPCH04L45/16H04L45/22H04L45/24H04L47/125
Inventor 郑国良龚铁柱赵海峰
Owner NEW H3C TECH CO LTD
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