Load balancing method and device as well as DHCP (dynamic host configuration protocol) server

A load balancing and dynamic host configuration technology, applied in the network field, can solve the problems of heavy virtual gateway load, terminal failure to access normally, virtual gateway abnormality, etc., to avoid excessive load, avoid inability to access the network, and achieve good load balancing effect Effect

Inactive Publication Date: 2016-03-30
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a load balancing method, which is used to solve the problem that the normal virtual gateway load is relatively large caused by the prior art in the scenario of multiple virtual gateways; and in the scenario of only one virtual gateway, the virtual gateway is abnormal The problem that the terminal cannot access the network normally

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  • Load balancing method and device as well as DHCP (dynamic host configuration protocol) server
  • Load balancing method and device as well as DHCP (dynamic host configuration protocol) server
  • Load balancing method and device as well as DHCP (dynamic host configuration protocol) server

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Embodiment Construction

[0061] The load balancing method, device and DHCP server provided by the present invention will be described in more detail below with reference to the drawings and embodiments.

[0062] The embodiment of the present invention provides a load balancing method, such as figure 1shown, including:

[0063] Step 101, when receiving a DHCP request sent by a terminal, select a virtual gateway from at least one virtual gateway, and the at least one virtual gateway corresponds to at least one backup gateway.

[0064] Specifically, at least one virtual gateway corresponds to at least one backup gateway, one virtual gateway may correspond to one backup gateway, or multiple virtual gateways may correspond to the same backup gateway. When receiving the DHCP (DynamicHostConfigurationProtocol, Dynamic Host Configuration Protocol) request sent by the terminal, indicating that the terminal needs to be assigned an IP (Internet Protocol, network protocol) address and gateway, then from at least...

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Abstract

The invention provides a load balancing method and device as well as a DHCP (dynamic host configuration protocol) server. The load balancing method comprises the following steps: selecting one virtual gateway from one or more virtual gateways when receiving a DHCP request sent by a terminal, wherein the virtual gateways correspond to one or more backup gateways; judging whether the selected virtual gateway is normal or not; and if yes, allocating the selected virtual gateway to the terminal, otherwise, allocating one of the backup gateways to the terminal. When the number of the virtual gateways is more than one, and the selected virtual gateway is abnormal, a backup gateway corresponding to the abnormal virtual gateway is allocated to the terminal, so that the problem that the load of a normal virtual gateway is over-large is solved; and when only one virtual gateway exists and is abnormal, a backup gateway is allocated to the terminal, so that the phenomenon that the terminal cannot access a network is avoided.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a load balancing method, device and DHCP server. Background technique [0002] At present, the gateway load balancing technology is mainly realized by VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) protocol, and two gateway devices form a VRRP group through the VRRP protocol, that is, form a virtual gateway. [0003] In actual networking, each VLAN (VirtualLocalAreaNetwork, virtual local area network) corresponds to a virtual gateway. When a gateway is assigned to a terminal, the corresponding virtual gateway is assigned to the terminal according to the VLAN to which the terminal belongs. For example, the VLAN corresponding to the terminal is VLAN1 , then allocate a virtual gateway corresponding to VLAN1 to the terminal, and specifically allocate the main gateway device in the virtual gateway to the terminal. [0004] When the virtual gateway assi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L29/08H04L12/713H04L45/586
Inventor 黄米青
Owner RUIJIE NETWORKS CO LTD
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