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A load balancing method, system and device

A technology of load balancing and equipment, which is applied in the network field, can solve problems such as service interruption, GRE tunnel traffic discarding, and the inability to dynamically perceive the GRE tunnel status, etc., to achieve the effect of solving packet loss service interruption and ensuring load

Inactive Publication Date: 2012-02-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this solution is that since VRRP cannot dynamically perceive the status of the GRE tunnel connecting the branch structure, when the GRE tunnel is abnormal, VRRP load balancing will not actively interrupt the traffic of the GRE tunnel
As a result, all traffic on the GRE tunnel is discarded, and services are interrupted.

Method used

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  • A load balancing method, system and device
  • A load balancing method, system and device
  • A load balancing method, system and device

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Embodiment Construction

[0065] The core idea of ​​the present invention is: each router as a member of the VRRP group in the egress of the enterprise network obtains the address of the opposite end of the tunnel bound to it. Each router as a member of the VRRP group periodically detects whether the peer address of the tunnel is reachable, and if it is reachable, it does not change; if it is not reachable, it dynamically modifies the route of the tunnel, and forwards the tunnel traffic originally forwarded by itself to another router. A router sends the tunnel traffic originally forwarded through the tunnel of this routing device to the branch network through the tunnel of another router. At the same time, another router forwards the traffic destined for the public network server to the router sending the tunnel traffic by adjusting the default route, and the router sending the tunnel traffic assists in forwarding the traffic destined for the public network server. In this way, the purpose of traffic ...

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Abstract

The invention discloses a method, a system and equipment for balancing loads. The method provided by the invention effectively solves the problems of packet loss and service interruption when a tunnel between a park and a branch is abnormal under a condition of multi-egress networking of network of the park of an enterprise. Meanwhile, the traffic at the egresses can be dynamically adjusted to ensure to keep double-egress bandwidth load balance.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to a load balancing method, system and equipment. Background technique [0002] With the rapid development of LAN technology, the business of LAN is growing explosively. There are many factors that affect the service quality of a LAN, one of which is the egress link from the LAN to the WAN. With the growth of LAN services, the bandwidth and availability requirements for WAN egress links are getting higher and higher. At the same time, the reliability of a single egress link is poor. Once a failure occurs, it will cause the interruption of the network's external services and cause serious consequences. [0003] Currently, when an enterprise connects to a WAN, two links are usually introduced as backup links to improve reliability. A schematic diagram of a common enterprise dual-export network architecture in the prior art is as follows: figure 1 shown. On the premise of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/12H04L12/56H04L12/803
Inventor 李蔚
Owner NEW H3C TECH CO LTD
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