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Packet-switcher flow monitoring and inquiry method and line card picker

A packet switching and flow monitoring technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as inability to meet real-time query of statistical results, affecting node processing speed and throughput, and inability to perform line-speed statistics, etc. Achieve the effect of easy on-site upgrade, low cost, and timely statistics

Inactive Publication Date: 2005-03-30
CHONGQING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

[0004] In view of the existing network monitoring technology in the high-speed network environment, the processor resource consumption is serious, which affects the node processing speed and throughput, cannot perform wire-speed statistics, and cannot satisfy the real-time query of statistical results, etc., the technical problem to be solved by the present invention Yes: Provide a method that can perform line-speed statistics and real-time query on the packets passing through the packet switching equipment

Method used

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  • Packet-switcher flow monitoring and inquiry method and line card picker
  • Packet-switcher flow monitoring and inquiry method and line card picker
  • Packet-switcher flow monitoring and inquiry method and line card picker

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Embodiment Construction

[0024] The line card collector performs real-time monitoring and statistics on the data packets passing through the line card or data packets with flow marks, and responds to the detection packet query, which can be used as a supplementary mechanism to the existing router traffic statistics method. Typical application environments are high-end IP routers, switches, or transmission platforms based on packet forwarding services. These nodes usually have wire-speed ASIC forwarding engines and hardware-implemented packets / flows classification functions.

[0025] Such as figure 1 Shown is the functional block diagram of the line card collector, which can be decomposed into six sub-modules: input buffer interface module FIFO (IN), statistics manager system interface module, forwarding output interface module FIFO (OUT), DataBase controller interface module, collection statistics Module, message filling transmission module. It works as follows:

[0026] The central processing unit ...

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Abstract

Card collector based on hardware technique is adopted in the invention to inquire about flux of data packets in network and to make linear speed statistics in real time. The collector includes parts: input interface module, CPU, collection and statistics module, interface module of statistics manager system, message filling and transmission module, interface module of Database controller, and interface module of output. Functions of statistics and inquiring includes steps: sorting data packets, extracting key words from multiple filed in data packets; statistics of number of data packet and length of data packet; statistics of stream classes; statistics of forwarding routes; filling the result of statistics into relevant position in exploration data packets, which are transferred to forwarding and dispatching module in next level so as to complete the said functions.

Description

technical field [0001] The invention relates to the field of communication network management and control, in particular to a method and device for monitoring and querying the flow of packet switching equipment in the communication network. Background technique [0002] As we all know, SNMP / RMON is a management and monitoring mechanism widely used in IP networks. RMON refers to monitoring the entire network through a node in the network for network management. In order to monitor the entire network, a monitor needs to be set up at each node in the network, and the network operation center (NOC) and each monitor gather monitoring information to the NOC through polling or event reporting. Although this method of setting a monitor on each node is intuitive, it has a fatal flaw that the overhead is too high. When the monitor collects and stores information, it consumes the processor resources of the node where it is located, which will affect the processing speed or throughput o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/26
Inventor 唐红殷建儒赵国锋张毅
Owner CHONGQING UNIV OF POSTS & TELECOMM
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