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Load distribution method and system and device for allocating the backup packet and virtual IP address

An IP address and load offloading technology, applied in the field of network communication, can solve the problems of reducing business service quality, reducing business flow forwarding efficiency, and failing to achieve traffic load sharing by DHCP relay equipment, so as to improve forwarding efficiency and flexibility and business service quality effects

Inactive Publication Date: 2007-08-15
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, in the subsequent process of sending service flows, different clients will send the service flows to the virtual IP address of the same backup group. For example, in Figure 2, each DHCP client sends the service flows to the backup group 1 Due to the virtual IP address, only one DHCP relay device in the system handles the service flow of the DHCP client, while the other DHCP relay devices are in an idle state, so that traffic load sharing cannot be realized on the DHCP relay device, reducing the traffic load of the service flow. Forwarding efficiency reduces business service quality

Method used

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  • Load distribution method and system and device for allocating the backup packet and virtual IP address
  • Load distribution method and system and device for allocating the backup packet and virtual IP address
  • Load distribution method and system and device for allocating the backup packet and virtual IP address

Examples

Experimental program
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Effect test

Embodiment 1

[0066] In this embodiment, manner 1 among the foregoing service implementation manners is described.

[0067] Fig. 4 is a flow chart of implementing load splitting in Embodiment 1 of the present invention. Referring to Figure 4, the specific process of realizing load shunting includes the following steps:

[0068] Step 401: Save the virtual IP addresses of all the backup groups formed by the DHCP relay device on the DHCP server in advance.

[0069] Step 402: each DHCP client completes the initial process of allocating network configuration parameters by interacting with the DHCP server to discover and provide messages.

[0070] Here, the specific implementation process of this step includes: each DHCP client sends a discovery message to each DHCP relay device through an access layer device; each DHCP relay device carries the virtual IP address of the active backup group where it is located in the discovery message The text is sent to the DHCP server; the DHCP server allocate...

Embodiment 2

[0084] In this embodiment, manner 2 among the foregoing service implementation manners is described.

[0085] Fig. 5 is a flow chart of implementing load splitting in Embodiment 2 of the present invention. Referring to Figure 5, the specific process of realizing load shunting includes the following steps:

[0086] Step 501: Pre-save virtual IP addresses of all backup groups formed by the DHCP relay device on the DHCP relay device.

[0087]Step 502: each DHCP client completes the initial process of allocating network configuration parameters by interacting with the DHCP server to discover and provide messages.

[0088] Here, the specific implementation process of this step includes: each DHCP client sends a discovery message to each DHCP relay device through an access layer device; each DHCP relay device carries the virtual IP address of the active backup group where it is located in the discovery message The text is sent to the DHCP server; the DHCP server allocates network ...

Embodiment 3

[0106] In this embodiment, manner 3 among the foregoing service implementation manners is described.

[0107] Fig. 6 is a flow chart of implementing load splitting in Embodiment 3 of the present invention. Referring to Figure 6, the specific process of realizing load shunting includes the following steps:

[0108] Step 601: Preset the access layer device to support the function of monitoring and processing DHCP messages.

[0109] Here, by setting the access layer device to support the DHCP Snooping protocol, the access layer device supports the function of monitoring and processing the DHCP message.

[0110] Step 602: Save the virtual IP addresses of all the backup groups formed by the DHCP relay device on the access layer device in advance.

[0111] Step 603: Each DHCP client completes the initial process of allocating network configuration parameters by interacting with the DHCP server to discover and provide messages.

[0112] The specific implementation process of this ...

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Abstract

The invention discloses method and system for shunting load and allocating virtual IP address for backup group. Wherein, storing all virtual IP addresses of backup group composed by DHCP relay device; when detecting trigger affair to allocate virtual IP address, allocating the selected virtual IP address of backup group to DHCP client, and transmitting business flow by the client. The system comprises: a DHCP server, multiple backup groups every with some DHCP relay devices, an access layer device, a DHCP client, and an allocation device. This invention can improve the QoS.

Description

technical field [0001] The invention relates to network communication technology, in particular to a method and system for load distribution and a device for allocating virtual IP addresses of backup groups. Background technique [0002] In the Dynamic Host Configuration Protocol (DHCP) technology, the DHCP server can automatically assign network configuration parameters required for the DHCP client to access the Internet, including dynamic IP addresses and other related configuration parameters. It can be seen that DHCP technology avoids errors caused by manually setting IP addresses, and also avoids address conflicts caused by assigning one IP address to multiple hosts, reduces the burden of setting IP address administrators, and shortens the time required for configuring clients. The time spent greatly improves the performance of the system. [0003] In addition, at present, in order to provide reliable service protection for clients, the IETF has developed a Virtual Rou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/12H04L29/06H04L1/22H04L12/26H04L12/24H04L12/803
Inventor 秦雷
Owner NEW H3C TECH CO LTD
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