Testing method and testing system for virtual leased line circuit

Abstract

The embodiment of the invention discloses a testing method and a testing system for a virtual leased line (VLL) circuit. The method comprises the steps that a central server issues a first testing instruction to a first Ethernet probe; the first Ethernet probe sends a testing flow to an Ethernet interface on a first PE (provider edge); the first PE bridges the testing flow received by the Ethernet interface to an auxiliary basic data service interface through a heterogeneous medium adaptation technique; the auxiliary basic data service interface transmits the testing flow to a basic data service interface on the first PE through an auxiliary testing line; the basic data service interface sends the testing flow to an Ethernet interface of a second PE through the VLL circuit, and retransmits the testing flow to a second Ethernet probe; the first Ethernet probe and the second Ethernet probe compute together based on the testing flow to obtain a first testing result; and the first Ethernet probe reports the first testing result to the central server. According to the testing method and the testing system, the Ethernet probes are used for testing the heterogeneous medium VLL circuit in a basic data service.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and system for virtual leased line (Virtual Leased Line, VLL for short) circuit testing. Background technique [0002] VLL circuit is a point-to-point circuit based on Internet Protocol (Internet Protocol, hereinafter referred to as IP) / Multiple Protocol Label Switching (Multiple protocol Label Switching, hereinafter referred to as MPLS) network, compatible with Asynchronous Transfer Mode (Asynchronous Transfer Mode, hereinafter Abbreviation: ATM), Frame Relay (FR) and Ethernet and other access methods. It can carry basic data services such as ATM and frame relay on the IP / MPLS network. Such as figure 1 As shown, it is a schematic diagram of a service model of a VLL circuit, which uses protocols such as Label Distribution Protocol (Label Distribution Protocol, hereinafter referred to as LDP) and Resource Reservation Protocol (ReSource reservation Protocol, hereinafte...

AI Technical Summary

Problems solved by technology

In the prior art, since ATM and frame relay instruments have been discontinued, it is extremely difficult to maintain and test heterogeneous medium VLL circuits for basic data services such as ATM and frame relay

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