An automatic extraction and recording device for periodic performance report
A performance and periodic technology, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems that require a lot of software overhead and reduce other system performance, and achieve the effect of not occupying system software overhead, high efficiency, and low cost
Active Publication Date: 2008-03-19
SANECHIPS TECH CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a device that is simple and convenient to use and does not occupy system software overhead so that it can extract and record the T1 line cycle performance report of the line operating performance for a long time, so as to solve the problem that a large amount of software is required when extracting the cycle performance report. overhead and have to degrade other performance issues of the system
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[0023] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0024] The technical problem to be solved by the present invention is to provide a testing device specially used for periodic performance reports in T1 communication systems, which can be used for simple and convenient extraction and recording of periodic performance reports on the T1 line system side and user side in narrowband communication.
[0025] The device of the present invention is used to efficiently receive, deframe and fix the frame, extract the frame header bits of the periodic performance report PPR contained in the T1 data frame structure from the serial data, and then extract the effective PPR information bits, and save the useful information for output .
[0026] As shown in Figure 1, the periodic performance report test device of the present invention includes the following parts:
[0027] Receive framing circuit 1, used to distingui...
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The invention discloses a device for automatically extracting and recording periodical performance reports, relating to the system comprehensive performance monitoring technology of T1 line in communication technology. The device in the invention comprises a constant frame receiving circuit which is used to determine the position of the frame header of an ESF frame, output the frame header information and the data information, and generate a multi-frame header denotation impulse and a single-frame header denotation impulse, and a single frame counting circuit which is used to receive the frame header information and determine the single frame number where the current data are located according to the single-frame header denotation impulse, a D-LINK data bit extracting circuit which is used to receive the data information and extract the D-LINK bit information with PPR from the data information, an effective PPR information bit extracting circuit which is used to extract the effective PPR information and output, and a periodical performance report encapsulating / storing circuit which is used to encapsulate and store the effective PPR information data flow. The device in the invention has simple and convenient operation, low cost and high efficiency.
Description
Technical field [0001] The present invention relates to the monitoring technology of the system comprehensive performance of the T1 line in the communication technology, and in particular to a device for automatically extracting and recording periodic performance reports. Background technique [0002] At present, the performance indicators that both the T1 line system side and the user side pay attention to in narrowband communication include the number of Cyclical Redundancy Check (CRC) errors generated in the line per second, the number of slip codes, and the number of serious The main indicators such as the number of frame header errors, the number of encoding violations, and the loopback status, are combined into a complete report in the ITU-T G.704 protocol, namely the Period Performance Report (PPR). For this reason, currently the most widely used extended superframe (ESF) frame structure in the T1 communication system has added the information bits of the above data. The s...
Claims
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IPC IPC(8): H04L1/00H04L12/26H04L29/06
Inventor 朱励行田津吕舒予朱泽奇黄炜
Owner SANECHIPS TECH CO LTD