IP DSLAM business fault diagnosing method based on network processor

Abstract

The invention relates to an IP DSLAM (1) traffic failure diagnosis method based on a network processor, using traffic flow mirror technique. An on-line traffic flow port to be diagnosed is confirmed, and spare traffic flow ports for diagnosis are selected and set in one group. When the network processor (13) sends the traffic flow port to be diagnosed to the on-line traffic flow port, the said traffic flow is copied in multicast mode and switched to the spare traffic flow port after script treatment. The copied traffic flow B or C are analyzed and an alarm or statistical information message is generated by treating the traffic flow D. The said invention fully uses linear speed processing ability of network processor, the CPU intervention is less and the running of device is not affected, at the same time all the diagnosis aims at the traffic flow port, and the influence on the affair of port to be diagnosed is little. The diagnostician is facilitated using near end, far end and script assistant specific diagnostic mode and the diagnose requirement is greatly satisfied.

Description

technical field [0001] The invention relates to a broadband access service fault diagnosis method, in particular to a network processor-based IP DSLAM service fault diagnosis method. Background technique [0002] Broadband access device 1, the physical structure is shown in Figure 1: k ports are set on the network side, connected to the main control board 11; m×n ports are set on the user side, connected to n line cards 12, each line card 12 Set m ports; the line connection between the main control board 11 and the line card 12 . The logical structure is shown in FIG. 2 , the network processor 13 and the ASIC chip are arranged in the main control board 11 , and the line card 12 provides the service physical channel to the user port. [0003] Since the actual users involved in the service failure of the broadband access equipment are relatively scattered, especially if there is a service failure on the user side, it takes manpower and material resources to go to the site for...

AI Technical Summary

Problems solved by technology

[0005] (1) directly connect a PC or an analyzer to capture and analyze the corresponding actual port where the fault occurs; this method has greatly affected the actual business to be diagnosed;

[0006] (2) Redirect to CPU packet capture analysis and statistics; this method takes up a lot of CPU resources and affects the operation of the device;

[0007] (3) The flow mirroring technology used is only implemented between the uplink ports, and cannot be based on the actual ports on the user side, let alone the service flow ports in each user port; this method is not flexible enough, and the uplink port Directly locating service faults has a great impact on actual services; currently, each user may have multiple service flows, such as using a home gateway, and it is impossible to locate faults based on each service flow

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