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Method for balancing distribution of ECMP member links in ECMP group

A member link and member technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems affecting the transmission of original data streams, and achieve the effect of reducing impact and small changes in exports

Inactive Publication Date: 2019-03-08
SUZHOU CENTEC COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When the network environment changes, that is, the ECMP member link changes, such as adding or deleting an ECMP member link, the new data flow can choose the link with the lightest load to send the message according to the load of the new ECMP member link , and if the original data flow does not trigger link reselection, the ECMP member link has changed, which will eventually affect the sending of the original data flow

Method used

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  • Method for balancing distribution of ECMP member links in ECMP group
  • Method for balancing distribution of ECMP member links in ECMP group

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Embodiment Construction

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0021] The invention discloses a method for balancing the distribution of ECMP member links in an ECMP group, which can balance the distribution of ECMP member links when adding or deleting ECMP member links in the ECMP group, and reduce the impact caused by changes in ECMP member links. Impact on existing traffic services.

[0022] combine figure 1 with figure 2 As shown, a method for balancing the distribution of ECMP member links in the ECMP group, the ECMP group occupies consecutive M ECMP member link entries, and the ECMP member link entries are used to store the ECMP member links, Methods include:

[0023] When adding an ECMP member link in the ECMP group, randomly select an ECMP member link entry, and judge whether the number of ECMP member links stored in it is greater tha...

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Abstract

The invention discloses a method for balancing distribution of ECMP member links in an ECMP group. The method comprises the following steps that when an ECMP member link is added in the ECMP group, the ECMP member link with multiple times of appearance is replaced with the newly added ECMP member link, so that the number of times of appearance of each ECMP member link is balanced; and when an ECMPmember link is deleted from the ECMP group, the to-be-deleted ECMP member link is replaced with the ECMP member link with few times of appearance, so that the number of times of appearance of each ECMP member link is balanced. According to the method, when the ECMP member link is added in or deleted from the ECMP group, the distribution of the ECMP member links can be balanced, so that the influence on existing flow services due to the change of the ECMP member links is reduced.

Description

technical field [0001] The invention relates to the technical field of computer network communication, in particular to a method for balancing the distribution of ECMP member links in an ECMP group. Background technique [0002] Network switching chips, such as ASIC chips, FPGA chips or NP chips, etc., when implementing dynamic ECMP (Equal-Cost Multipath Routing, equivalent routing), usually first search the routing table according to the destination IP address of the message, and obtain the next-hop egress information as An ECMP group, and further obtain information about whether to enable dynamic ECMP from the ECMP group. If dynamic ECMP is not enabled, calculate the Hash value according to the specific fields in the message header, such as source IP address, destination IP address, etc., and according to the message The Hash value determines a static ECMP link for message forwarding. If dynamic ECMP is enabled, the dynamic ECMP flow table is further searched, and whether ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L12/741H04L45/74
CPCH04L45/74H04L47/125
Inventor 王文刚何志川周杰赵茂聪李磊
Owner SUZHOU CENTEC COMM CO LTD