Communication method and equipment of MPLS L2VPN (Multiple protocol Label Switching Layer 2 Virtual Private Network) and MPLS L3VPN (Multiple protocol Label Switching Layer 3 Virtual Private Network)

Abstract

The invention discloses a communication method and equipment of MPLS L2VPN and MPLS L3VPN. The communication between an MPLS L2VPN network and an MPLS L3VPN network can be realized by a uniform VE (Video Engineer) interface by applying the technical scheme of the invention, and thereby, the corresponding operational process is simplified, and since the corresponding strategy settings can be applied in different MPLS L2VPN network types to realize message processing and forwarding, and thereby, the processing efficiency of carrying out message interaction between the MPLS L2VPN network and the MPLS L3VPN network is effectively improved, and the hardware adaptation cost is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a communication method and equipment for MPLS L2VPN and MPLS L3VPN. Background technique [0002] The schematic diagram of message forwarding in MPLS (Multi-Protocol Label Switching, multi-protocol label switching) L3 (Layer3, three layers) VPN (Virtual Private Network, virtual private network) networking structure is as follows figure 1 shown. [0003] CE (Customer Edge, user network edge device) is usually a router. When CE establishes an adjacency relationship with a directly connected PE (Provider Edge, service provider network edge device), CE advertises the VPN route of this node to PE. After the PE learns the local VPN routing information of the CE from the CE, it exchanges VPN routing information with other PEs through MP-IBGP (Multi-Protocol Internal Border Gateway Protocol, Multi-Protocol Internal Border Gateway Protocol). [0004] When transmitting VPN...

AI Technical Summary

Problems solved by technology

[0041] The configuration of the existing technology is relatively complicated, and for products forwarded by hardware, the driver adaptation is also relatively complicated, because the forwarding table information stored in the hardware often requires a combination of information of various configurations to be generated at one time, instead of filling in each configuration separately, so There are more linkages caused by each configuration

[0042] In addition, during the forwarding process, the efficiency of forwarding speed is relatively low because there are many links and lookup entries involved.

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