Method and apparatus for accessing multi-protocol label switch virtual special-purpose network

Abstract

The invention discloses a method for accessing multi-protocol label switching virtual private network, which comprises the following procedures: the data stream of the virtual leased line is received and forwarded through a virtual Ethernet interface on the loopback board, each virtual leased line is provided with at least two different virtual Ethernet interfaces, and the different virtual Ethernet interfaces is respectively arranged on the different loopback board; when certain loopback board is detected that the malfunction is generated, and the data stream bore by the failed loopback board is switched to another loopback board. Accordingly, the invention also discloses a service provider edge equipment, at least two different virtual Ethernet interfaces are arranged for each virtual leased line through carrying out the embodiment of the invention, the different virtual Ethernet interfaces is respectively arranged on the different loopback board, and after certain loopback board fails, the purpose that the service can be quickly switched to another loopback board can be realized, to avoid the service interruption of the virtual leased line user for a long time, enhance the reliability of the network and improve the satisfaction of the user.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for accessing a multi-protocol label switching virtual private network and a service provider edge device. Background technique [0002] With the gradual development of the Internet Protocol (IP) MAN as the mainstream solution for MAN construction, the Multi-Protocol Label Switching Virtual Private Network (MPLSVPN) has the ability to solve enterprise interconnection and provide rich business capabilities. Private Network (MPLS VPN) technology is becoming an important means of operating value-added services on IP networks. [0003] MPLS VPN technology can decompose the IP network into logically isolated networks. The application of this logically isolated network can be varied: separate interconnection of enterprises, separate interconnection of government offices, and provision of new services (such as developing VPN for IP telephony services, Solve the shortage of IP network...

AI Technical Summary

Problems solved by technology

[0006] Create VE interfaces for different users on the PE for the MPLS L2VPN network. Each VE interface corresponds to a virtual leased line (Virtual Leased Line, VLL). The data flow of the user reaches the PE through the VLL and then enters the MPLS L3VPN network, and the return traffic passes through the VLL. To reach the user's CE, the loopback board is very important because a large number of dedicated line users are aggregated to one PE through different UPEs and then connected to the MPLS L3VPN network through the loopback board. VLL is a point-to-point technology. Only one VE interface can be connected to each VLL. In this way, when the loopback board where the VE interface is located fails, the loopback board needs to be replaced manually, which will result in hundreds of leased line users accessing through this loopback board. The business is interrupted for a long time, and the reliability is poor, causing serious losses to users

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