PPPOE disconnection detection method based on network processor

Abstract

The invention relates to a PPPOE flow break detecting method based on the network processor, which is used for connecting the host computer (1) of the user with the concentrator (2) through DSLAM equipment. The method comprises confirmation of the user port to be detected. The network processor detects the upper line and the lower line data flow and captures the PADT package, judges whether abnormal flow break exists by confirming whether matched upper line or lower line PADT package exists and sends flow break warning to the network management. The method uses the network processor to capture important data massage for logical judgment and can detect PPPOE flow break automatically. Present fault location technology is further developed and modem remote circling detecting means is perfected. When line fault is detected, network management warning can be given out and the network management can take possible detecting measures to further locate the fault and acquire concrete fault location and other related information. Thus the invention has good application foreground.

Description

technical field [0001] The invention relates to the broadband access technology of computer Internet, in particular to a network processor-based PPPOE disconnection detection method. Background technique [0002] (1) PPPOE protocol: Through the PPPOE protocol, multiple hosts on a shared Ethernet can conduct multiple PPP sessions with the remote access concentrator through one or more simple bridge access devices. PPPOE includes two stages of discovery and PPP session. The discovery stage is a stateless Client / Server mode. The purpose is to obtain the Ethernet MAC address of the PPPOE terminal and establish a unique PPPOE SESSION_ID. After the discovery phase ends, it enters the standard PPP session phase. For the PPPOE protocol, please refer to the RFC2516 document for details. [0003] (2) PPPOE communication process, such as figure 1 As shown, there are two distinct phases, specifically: [0004] ① Discovery stage, there are four steps 100-103 in the discovery stage. W...

AI Technical Summary

Problems solved by technology

[0015] (4) PPPOE disconnection detection: Operators are usually very concerned about the drop rate. The direct way to count the drop rate needs to collect RADIUS information. Statistics, so it is impossible to monitor the drop rate in real time

Due to the above reasons, there is currently no practical and effective real-time monitoring method, so that even if a large number of network element services are interrupted when the network management is normal, that is, a large number of users are disconnected from PPPOE, there will be no alarm on the network management, resulting in the operator being unable to make recovery. or any mitigating action to deal with the catastrophic failure

[0016] In addition, equipment manufacturers currently provide a variety of remote modem loopback testing technologies for operators to further locate the fault location. Among them, ATM loopback detection can confirm whether the ATM layer link is normal, but it cannot confirm the data link above. Is it normal

When the digital loopback technology locates the fault location, all the data will be looped, causing users to be unable to access the Internet

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