Digital user line broad band business testing method

Abstract

The method for testing line of digital subscriber's line includes such steps as disconnecting connection of network between device at bureau end and device at remote ends; connecting device at remote end with emulated interface for bureau end of testing system or connecting device at bureau end with emulated port for remote end of testing system; testing system emulates relevant operations of bureau end and of remote end to test function of activating bureau end and protocols at asynchronous transferring mode and high layer. The advantages are high worked efficiency and low cost.

Description

technical field [0001] The invention relates to digital subscriber line technology, in particular to a digital subscriber line broadband service testing method. Background technique [0002] In the field of telecommunication services, operators provide users with broadband telecommunication services and narrowband telecommunication services at the same time through a pair of twisted pairs, such as adding ADSL (ADSL over POTS) to ordinary telephones, adding ADSL (ADSL over ISDN) to ISDN, and adding ADSL (ADSL over ISDN) to ordinary telephones. Added VDSL (VDSL over POTS), ISDN added VDSL (VDSL over ISDN), G.SHDSL and other services, such applications have been quite common at home and abroad. (In the present invention, ADSL, VDSL, and G.SHDSL are collectively referred to as xDSL) [0003] As shown in Figure 1, xDSL signals and POTS / ISDN signals coexist in a user's outside line. On the central office side, the splitter (SPL) in the broadband access equipment (DSLAM: DSL Acces...

AI Technical Summary

Problems solved by technology

[0007] At present, the opening, testing and maintenance of xDSL lines basically rely on experience and actual verification. For a specific line, there is no quick and reliable method to test whether this line can provide certain services, how much broadband can be opened, and line parameters. How much is it, whether the terminal (referred to as CPE) is set normally, etc., so the existing testing and maintenance have the following shortcomings:

[0008] (1) During testing and maintenance, if the port activation fails, you can only modify the line parameters from the local end to reduce the activation rate, reduce the noise margin, etc., trying to activate the port, but this cannot guarantee and locate the local end (CO side for short) or CPE side no problem

If the CO port used is faulty, it will never be activated, and a lot of effort will be spent on checking the line quality and the direction of the terminal CPE setting; if the faulty CPE is used, it is difficult to find it, and you can only go to the user's home site to replace the CPE Try to carry out, it is not easy to operate and maintain for terminal users

[0009] (2) If the activation is successful but the service is unavailable, you can only check the Asynchronous Transfer Mode (ATM) layer setting of the central office port to locate whether there is data flow on the physical layer and the ATM layer, because there are few maintenance methods for the central office port , the positioning of the physical layer and the ATM layer cannot be well performed, resulting in high maintenance costs, few means of solving problems, and slow speed.

[0010] (3) When the ATM layer is completely normal, because the DSLAM only handles the ATM layer, it is impossible to perform protocol encapsulation, IP, TCP and other protocol layers on the DSLAM for testing, and it is impossible to locate the real reason why the user cannot use the business normally

Under the current circumstances, operators can only arrange maintenance personnel with strong experience in RTU to the user site, and the central office also arranges personnel to cooperate with BAS and other layer 2 / 3 layer-terminated equipment to locate faults, which leads to maintenance personnel The requirements are very high, the number of maintenance personnel is large, and fault location is difficult, which brings great obstacles to the large-scale development of broadband services.

[0011] In short, in the prior art, there is no good maintenance and testing method to quickly locate the cause of the failure after the line fails

Especially when it is found that the user port cannot be activated, there is no way to know whether the port at the central office is broken or the terminal is broken, or other line reasons. The problem at the terminal is the RTU setting of the terminal or even the setting of the user's computer. On-site maintenance is required, which is time-consuming and laborious, which greatly reduces the service of the operator and is not conducive to cost control.

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