Message cross-domain forwarding method and device as well as communication device

Abstract

An embodiment of the invention provides a message cross-domain forwarding method and device as well as a communication device. The method comprises steps as follows: a layer 2 tunnel protocol used among neighbor devices is acquired; configuration parameters used among neighbor devices are extracted according to the acquired layer 2 tunnel protocol; a layer 2 tunnel translation table is generated according to the extracted configuration parameters; a first kind of layer 2 tunnel message is translated into a second kind of layer 2 tunnel message according to attributes of the received first kind of layer 2 tunnel message sent by a source device as well as the received layer 2 tunnel translation table, and the second kind of layer 2 tunnel message is forwarded to a target device. According to the embodiment, by means of the generated layer 2 tunnel translation table, the layer 2 tunnel message is translated into a new layer 2 tunnel message to be forwarded to the target device, so that rapid and direct mutual access communication between layer 2 tunnels is realized, and the problems that the processing efficiency is low and flexibility is not enough when the message is forwarded between the layer 2 tunnels due to repeated message packaging are solved.

Description

technical field [0001] Embodiments of the present invention relate to network communication technologies, and in particular to a message cross-domain forwarding method, device and communication equipment. Background technique [0002] A virtual private network (Virtual Private Network, referred to as VPN) refers to the establishment of a private network on a public network, also known as a cross-domain network. VPNs are increasingly used because they allow mobile workers, remote workers, business partners and others to connect to corporate networks using locally available high-speed broadband connections. [0003] Currently, the VPN network is divided into a Layer 3 VPN network and a Layer 2 VPN network. Among them, Layer 2 VPN mainly includes Virtual Private LAN Service (VPLS) based on Multi-Protocol Label Switching (MPLS) tunneling technology, and IP-based public network using general-purpose routing encapsulation. Network Virtualization using Generic Routing Encapsulati...

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Problems solved by technology

[0004] However, in the prior art, due to the different standards of the above-mentioned various tunnel protocols, the various tunnels are not compatible and cannot directly communicate with each other. In order to solve this problem, the packets are generally encapsulated multiple times, but also It can only guarantee the compatibility between two types of Layer 2 tunnels, and the length of the original packet is increased due to encapsulation, resulting in an increase in the burden of packet processing, low efficiency and inflexibility in forwarding user load data

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