Safety protecting method for digital user line cut-in multiplexing device

A digital subscriber line and access multiplexer technology, which is applied in the field of computer network and telecommunication network, can solve the problems of high CPU usage rate of DSLAM equipment, the danger of device reset, high CPU usage rate, etc., to achieve convenient operation management and equipment safety , the effect of reducing the occupancy rate
CN1859209AActive Publication Date: 2006-11-08HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2006-11-08

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Abstract

The present invention discloses a safety protection method for digit user line accessing multiplexer, referring to computer network and telecommunication network technology field. Said method includes single board hard ware catching special protocol message from corresponded each XDSL port and sending to single board CPU; single board CPU detecting received special protocol message and judging in unit time whether said special protocol message flow rate exceeding predetermined threshold, if it is not then single board CPU uploading said special protocol message to host computer CPU processing, otherwise single board CPU stopping uploading said special protocol message to host computer CPU. The present invention does not need manually configuring MAC address or MAC address maximum learning number in subscriber access port, reducing maintenance quantity and important protocol message lose, and reducing CPU use rate.
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Description

[technical field]

[0001] The invention relates to the technical fields of computer network and telecommunication network, in particular to a safety protection method for a digital subscriber line access multiplexer. [Background technique]

[0002] As operators put forward the demand for broadband network flattening (that is, the reduction of network layers) to save investment, DSLAM (Digital Subscriber Line Access Multiplexer) realizes more high-level protocol message processing, and Functions such as IP forwarding and other Layer 2 and Layer 3 switches or routers can only be implemented. Since a large number of protocol packets need to be analyzed by software modules, the CPU load of the DSLAM device is usually very high. If too many protocol packets are processed, the As a result, the CPU occupancy rate is 100%, which in turn causes other important processes to be "starved to death" because they cannot be processed in time. The harm brought is unpredictable and may cause v...

Claims

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