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Load equalizing method and route server

A load balancing and server technology, applied in the field of communication, can solve the problems that one link cannot be fully utilized, the load of two links is unbalanced, and the network structure cannot be dynamically adapted to changes, etc.

Inactive Publication Date: 2007-08-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The defect of the prior art is: the above-mentioned method for configuring policy-based routing cannot dynamically adapt to changes in the network structure, that is, once the network structure changes, the policy-based routing needs to be reconfigured, so it is very inconvenient and lacks flexibility; in addition, the above-mentioned method is only Links are allocated based on terminals, but not all terminals transmit service flows at the same time. If at a certain moment, the number of terminals using link 1 is small, but the number of terminals using link 2 is large , which will cause the load imbalance of the two links, so that one link cannot be fully utilized

Method used

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  • Load equalizing method and route server
  • Load equalizing method and route server

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Embodiment 1

[0020] This embodiment provides a load balancing method, as shown in Figure 2,

[0021] Step 101, after the routing server receives the message from the terminal, according to the destination address in the message, specifically, it can be an Internet Protocol (Internet Protocol, referred to as IP) address, in the forwarding information base (Forwarding Information Base, hereinafter referred to as : FIB) to find whether there are at least two equivalent links, if yes, execute step 102.

[0022] Among them, the equal-cost link refers to the route that can reach the destination address and has approximately the same cost. If there are no multiple equal-cost links, load sharing cannot be achieved. But what needs to be explained here is that if it can be determined according to the specific network topology that all packets from different terminals are sent to only one destination address, and there must be multiple equivalent links, then this step can be omitted.

[0023] Step...

Embodiment 2

[0034] This embodiment provides a routing server capable of load sharing. As shown in FIG. Wherein, the FIB is stored in the information base search module 12, and the outbound interface allocation table is stored in the allocation table module 13. The working process is as follows:

[0035] After the routing server 10 receives the message from the terminal, the information base search module 12 searches the FIB for at least two equivalent links according to the destination address in the message, which may be specifically an IP address, and when there are The search result is sent to the distribution table module 13, so that the distribution table module 13 starts to work.

[0036]After the allocation table module 13 receives the search result from the information base search module 12, it searches the corresponding outbound interface information in the outbound interface allocation table according to the terminal characteristic information in the message received by the rou...

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Abstract

A method for balancing load includes seeking relevant exit interface information in exit interface distribution table formed dynamically according to load state of multiple equivalent link in advance after message from terminal is received by route server, retransmitting said message to one link of multiple equivalent link according to sought out exit interface information, setting terminal character information and exit interface information in said exit interface distribution table. The said route server consists of distribution table module and retransmission module.

Description

technical field [0001] The invention relates to a communication technology, in particular to a load balancing method and a routing server capable of realizing load balancing. Background technique [0002] As shown in Figure 1, it is a networking structure capable of realizing load sharing, which is often used in applications such as Internet cafes. When a plurality of terminals such as terminal 31 access the network server 10 through multiple links such as links 1 and 2 via a wide area network (Wide Area Network, referred to as WAN), since multiple links are connected to the same network server 10, the gateway server 20 arrives at The network server 10 will generate a plurality of equal-cost links, that is, a plurality of routes with the same cost (cost), so that the service flow from each terminal will form a load sharing on the gateway server 20, that is, a part of the service flow will go through link 1, Some services flow through link 2, and some services flow through o...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28H04L29/06H04L12/24H04L12/701H04L12/803
Inventor 赵鲲鹏
Owner NEW H3C TECH CO LTD
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