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Link load balancing method and link load balancing device

A technology of load balancing equipment and link load, applied in the field of communication, it can solve the problem of not being able to make full use of ISP link bandwidth, etc., and achieve the effect of full utilization

Active Publication Date: 2013-11-20
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, the load balancing technology is only implemented for IPv4 addresses or the load balancing technology for IPv6 addresses alone, but it is impossible to implement the load balancing technology when IPv4 addresses and IPv6 addresses coexist.
Specifically, when multiple ISP links include IPv4-address-based ISP links and IPv6-address-based ISP links, the load balancing device cannot implement Load balancing technology, and then cannot fully utilize the bandwidth of the ISP link

Method used

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  • Link load balancing method and link load balancing device
  • Link load balancing method and link load balancing device
  • Link load balancing method and link load balancing device

Examples

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Embodiment Construction

[0046] Aiming at the problems existing in the prior art, the embodiment of the present invention proposes a link load balancing method, which can be applied to at least include intranet clients, load balancing devices, DNS (Domain Name System, domain name system) servers and external In the network of the network server, there is an ISP link based on the first type of IP address and an ISP link based on the second type of IP address between the load balancing device and the external network server. Wherein, the first type of IP address is an IPv4 address, and the second type of IP address is an IPv6 address; or, the first type of IP address is an IPv6 address, and the second type of IP address is an IPv4 address.

[0047] The first type of IP address and the second type of IP address need to be configured on the load balancing device. The first type of IP address of the load balancing device is used to communicate with intranet clients using the first type of IP address. The s...

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Abstract

The invention discloses a link load balancing method and a link load balancing device. The method comprises the following steps: receiving a DNS (domain name server) request message by the link load balancing device; requesting a first class IP address of an external network server to a DNS; requesting a second class IP address of the external network server to the DNS; recording a corresponding relation between the first class IP address of the external network server and the second class IP address of the external network server in an equivalent service table by the link load balancing device; receiving a business request message by the link load balancing device, wherein the destination IP address is the first class IP address of the external network server; and when the second class IP address corresponding to the first class IP address of the external network server exists in the equivalent service table, selecting an ISP (internet service provider) link from the ISP link based on the first class IP address and the ISP link based on the second class IP address by the link load balancing device. With the adoption of the link load balancing method and the link load balancing device provided by the embodiment of the invention, the load balancing between the ISP link based on an IPv4 address and the ISP link based on an IPv6 address is realized, and the bandwidth of the ISP link is fully utilized.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a link load balancing method and equipment. Background technique [0002] Such as figure 1 As shown, it is a schematic diagram of the application scenario of the link load balancing technology. By deploying a load balancing device (ie, LB device) to guide the intranet client to access the path selection of external resources through the load balancing device, and according to the destination IP address of the packet and link load balancing strategy to find a suitable physical link to complete the load balancing of packets among multiple links. Among them, the load balancing device can realize the following functions: intelligent link selection, flow control and management, link health status detection, link fault handling, etc. [0003] When the load balancing device selects a link, it can select the link with the shortest or shortest delay to the destination add...

Claims

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Application Information

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IPC IPC(8): H04L12/803H04L29/12
Inventor 孙凯
Owner NEW H3C TECH CO LTD
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