Communication method, communication apparatus and system between distributed equipment

Abstract

The invention discloses a communication method, a communication facility and a communication system among distributed facilities. The method is applied to a network comprising a first facility and a second facility; as a virtual IPC node, the first facility is positioned in a second IPC area of the second facility which as a virtual IPC node is positioned in a first IPC area of the first facility. The method comprises: messages transmitted to the second facility is transmitted by a host main control board of the first facility to a first interface connected with the second facility; the source address of the message is an IPC node mark of the host main control board in the first IPC area; messages are forwarded by a business board where the first interface is located, to a business board where a second interface on the second facility is located; in the forwarding process, the source address for altering the message is a virtual node mark of the first facility in the second IPC area; messages are transmitted by the business board where the second interface is located, to the host main control board of the second facility. An application of the communication method, the communication facility and the communication system among distributed facilities realizes communication based on the IPC area among distributed facilities, thus saving IP address resource in the network.

Description

technical field [0001] The invention relates to the communication field, in particular to a communication method, communication equipment and a communication system between distributed equipment. Background technique [0002] As users have higher and higher requirements for network reliability, how to ensure uninterrupted network transmission has become a problem that must be solved. Especially in the access points of some important services such as Internet access points of enterprises and database servers of banks. If only one firewall device is used on these access points, no matter how high its reliability is, the system will inevitably bear the risk of network service interruption due to single point failure. In order to solve the above problems, a dual-machine hot backup method is introduced in the prior art. The so-called dual-machine hot backup can also be called dual-machine session backup. Its schematic diagram can be as Figure 1A As shown, the two firewall dev...

AI Technical Summary

Problems solved by technology

The problem in the prior art is that in the dual-device session backup, IP addresses need to be assigned to the two devices respectively, which consumes limited IP address resources in the network

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