Virtual leased line network service protection method and operator edge device

Abstract

The invention provides a virtual leased line network service protection method and an operator edge device, and the method comprises the following steps: step A, using a local operator edge device fordetecting the disconnection of an access link between the local operator edge device and a local user edge device; step B, using the local operator edge device for acquiring a pseudo-line mark from the local operator edge device to a remote operator edge device; and step C, using the local operator edge device for generating a signal message of disconnection type of the link and sending the signal message of the disconnection type of the link to the remote operator edge device, wherein, the signal message contains the pseudo-line mark. When the access link between a PE at one end of a VLL network and a CE is disconnected, the disconnection message can be rapidly notified to the PE at the other end.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for protecting a virtual leased line network service and an operator edge device. Background technique [0002] Initially, telecom operators provided links to customers in the form of leased lines. However, as the number of customer branches increases, the cost of this method increases significantly, and the difficulty of management also increases. [0003] With the emergence of Asynchronous Transfer Mode (ATM) and Frame Relay (Frame Relay, FR) technologies, telecom operators began to use virtual circuits to provide customers with point-to-point Layer 2 links, and customers then established Its own three-layer network to carry data streams such as IP. However, this technology provides point-to-point Layer 2 connections, and the configuration is relatively complicated. Especially when adding a site, the administrator needs to do a lot of configuration work. [000...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a virtual leased line network service protection method and operator edge equipment to solve the problem of the connection between the operator edge equipment and the user edge equipment at one end in the prior art virtual leased line network services. When the inbound link is abnormal, the remote operator's edge device cannot know the abnormality, resulting in a technical problem that the status of the access link at both ends is out of sync.

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