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DHCP server active-standby redundancy method and system

A server and standby server technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as IP address waste

Active Publication Date: 2014-07-23
JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism meets the needs of backup to a certain extent. However, no matter whether the main DHCP server or the backup DHCP server is working in this method, the IP addresses that can be allocated to the DHCP client are only part of the IP addresses, resulting in a waste of IP addresses.

Method used

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  • DHCP server active-standby redundancy method and system
  • DHCP server active-standby redundancy method and system

Examples

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Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0052] figure 1 It is a flowchart of a method for active / standby redundancy of DHCP servers in this embodiment.

[0053] S101 starts the main DHCP server and the standby DHCP server, and the main DHCP server and the standby DHCP server share the IP address pool;

[0054] Set up a configuration file for each DHCP server, the configuration file contains the primary and backup identifiers, IP address lease duration, and IP address pool information; the DHCP server starts according to the configuration file;

[0055] S102 judges whether the main DHCP server works, if it works, ...

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PUM

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Abstract

The invention provides a DHCP server active-standby redundancy method and system. The method includes the steps that a main DHCP server and a standby DHCP server are started, and share an IP address pool; if the main DHCP server works, the main DHCP server collaborates with the standby DHCP server to obtain a standby server list; the main DHCP server synchronizes the obtained standby server list to the standby DHCP server on the standby server list; when the main DHCP server breaks down, the standby DHCP server on the standby server list carries out switching and judgment, and the standby DHCP server meeting switching conditions is switched to serve as the main DHCP server to work on the basis of the IP address pool. Under the situation of DHCP server active-standby redundancy, IP addresses are fully used.

Description

technical field [0001] The invention relates to the field of dynamic host configuration protocol DHCP server active / standby switching, in particular to a method and system for DHCP server redundancy. Background technique [0002] With the wide application of computer networks and the continuous expansion of network scale, network maintenance and management work is becoming more and more difficult and complicated, so a series of management and configuration protocols have been proposed for automatic network management. In October 1993, the Dynamic Host Configuration Protocol DHCP became a standard protocol for the automatic assignment of IP addresses. [0003] The host computer in the network obtains its own IP address, network gateway, DNS server address and other information from the DHCP server according to the provisions of the DHCP protocol. The DHCP protocol is defined in RFC2131, which defines the interaction standard between the DHCP server and the client. [0004] ...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L1/22
Inventor 江少广王宏濮斌苏静
Owner JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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