Method for realizing virtual IP protocol

Abstract

A method and system to achieve the virtual internet protocol, the invention is: disposes the virtual IP address for the external presentation on each node, the main using node broadcasts the free ARP request of the all nodes of the local area network that the main using node in it, the free ARP request includes the virtual IP address and the MAC address of the node in order to inform the corresponding relations between the virtual IP address of each node and the physical address, thus the main node can respond the ARP request of the virtual IP address and processes the data that send to the virtual IP address. The advantages of the invention are: omits the NAT equipment; reduces the establishing and maintenance cost of the whole digital communication network; the effective switch processing reduces the breakdown switch time; the better extension according to the flexible structure of the main equipment.

Description

technical field [0001] The invention relates to communication and computer group technology, in particular to a method for realizing virtual Internet Protocol (IP) in a digital communication network. Background technique [0002] For the digital communication network, it is necessary to provide a variety of different application services, from common services to intelligent value-added services, from voice to data, image and other comprehensive services, these services need to have high serviceability. Businesses with high serviceability are often built in computer cluster systems with high availability. [0003] In the computer cluster system, the high serviceability of the business is mainly achieved by adding nodes to make multiple nodes work in the load sharing mode or in the active and standby mode. When the active node fails, the standby node takes over from the active Continue to provide services with the node. Due to the evolution of the digital communication netwo...

AI Technical Summary

Problems solved by technology

[0005] IP address translation through NAT equipment needs additional network equipment specially used to implement network address translation functions, which increases the construction and maintenance costs of the entire digital communication network, and due to the complexity of NAT equipment protocols and algorithms, often makes NAT The speed at which the device converts the IP address is lower than the network speed, so that a bottleneck will be formed at the NAT device for a high-performance digital communication network

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