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Method and device for achieving internet protocol (IP) message equal-cost multi-path routing balancing

An IP message and routing technology, applied in the field of data communication, can solve problems such as poor flexibility, limitations, and no support for routing, and achieve the effect of reducing product costs and enhancing flexibility

Active Publication Date: 2012-10-10
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the cheap chips on many Layer 3 switches do not have a complete routing and forwarding function. The routing and forwarding function is generally realized through the set ACL (Access Control List, Access Control List) rules, and does not support selection through the hash algorithm. Routing function, which limits the realization of routing balance on Layer 3 switches
In addition, because the traditional hash algorithm has a fixed selection of flow features, generally only a few fixed options are provided, and the flexibility is relatively poor.

Method used

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  • Method and device for achieving internet protocol (IP) message equal-cost multi-path routing balancing
  • Method and device for achieving internet protocol (IP) message equal-cost multi-path routing balancing
  • Method and device for achieving internet protocol (IP) message equal-cost multi-path routing balancing

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Embodiment Construction

[0015] In order to realize the purpose of the present invention, the core idea adopted by the present invention is: match the flow characteristic strings of the selected IP packets into different characteristic strings according to specific rules, wherein the number of characteristic strings is determined by the number of equivalent routes. Further add the matched characteristic string to the ACL table entry as an additional matching item of the routing rule in the ACL table entry. Through this matching item, different IP packets can select different equal-cost routes for routing and forwarding, thereby realizing routing purpose of balance.

[0016] In order to make those skilled in the art more clear and understandable, before introducing the solution of the present invention, the principle of ACL routing and forwarding IP packets in the prior art will be explained.

[0017] Such as figure 1 As shown in , it is a schematic diagram of forwarding IP packets through ACL routing...

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Abstract

The invention discloses a method and a device for achieving internet protocol (IP) message equal-cost multi-path routing balancing. Flow characteristic strings of selected IP messages are matched to different characteristic strings on a three-layer exchanger according to a specific rule, wherein the number of the characteristic strings is determined by the number of equal-cost multi-path routings. Further the matched characteristic strings are added into an access control list (ACL) item to serve as external matching items of the routing rule, different IP messages can select different equal-cost multi-path routings for routing transmitting through the matching items, and accordingly the purpose of IP message equal-cost multi-path routing balancing is achieved.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a method and a device for realizing equal-cost routing balance of IP messages on a three-layer switch that does not support the function of selecting routes through a hash algorithm. Background technique [0002] Equal-cost routing means that there are multiple different routing paths with equal priorities to reach the same destination IP address or destination network segment. When a device supports equal-cost routing, the Layer 3 forwarding traffic sent to the destination IP address or destination network segment can be shared through different routing paths, thereby achieving load balancing of traffic on the network, and some of the routing paths When a fault occurs, other routing paths replace the faulty routing path to complete the packet forwarding process, realizing the routing redundancy backup function. [0003] Currently, there are mainly two implementation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
Inventor 周明
Owner XINHUASAN INFORMATION TECH CO LTD