Method for realizing virtual IP protocol

A virtual network and protocol technology, applied in the direction of electrical components, transmission systems, etc., can solve the problems of complex NAT device protocols and algorithms, increased digital communication network construction and maintenance costs, and low speed for NAT devices to convert IP addresses. Scalability, reduced construction and maintenance costs, and reduced failover time

Active Publication Date: 2009-05-27
DATANG MOBILE COMM EQUIP CO LTD
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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

Method used

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  • Method for realizing virtual IP protocol
  • Method for realizing virtual IP protocol
  • Method for realizing virtual IP protocol

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] In the present invention, on each node, the virtual IP address presented externally is configured, and the master node broadcasts a free Address Resolution Protocol (ARP, Address Resolution Protocol) request to all nodes in its local area network, in the free ARP request Carry the virtual IP address and the Ethernet card hardware (MAC) address of this node to notify each node of the correspondence between the virtual IP address and the physical address, so that the active node can respond to the ARP address sent to the virtual IP address Respond to the request, process the data sent to the virtual IP address, such as forwarding, or process the data according to the requirements of the client, these operations are exactly the same as those performed by the ex...

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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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04B1/74
Inventor 刘燕青赵保卫
Owner DATANG MOBILE COMM EQUIP CO LTD
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