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Alarm method and alarm device of openflow flow table

A technology of alarm device and flow meter, which is applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems of malicious attack, inability to guarantee the safety of equipment use, and low sensitivity of alarm information, so as to enhance the response ability and improve the The effect of detecting sensitivity and improving safety

Inactive Publication Date: 2014-04-23
SUZHOU CENTEC COMM CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Among them, the unmatched packets received by the Controller are data packets, and these data packets do not contain alarm messages. Therefore, the Controller is less sensitive to the alarm information and is vulnerable to some malicious attacks, which cannot guarantee the safety of the device. sex

Method used

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  • Alarm method and alarm device of openflow flow table
  • Alarm method and alarm device of openflow flow table
  • Alarm method and alarm device of openflow flow table

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Embodiment Construction

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0023] Such as figure 1 As shown, the present invention discloses an alarm method for an openflow flow table. After an openflow switch receives a message, the switch first performs a lookup of the first flow table in a lookup table, and performs processing based on the pipeline. The pipeline of each openflow switch contains multiple flow tables, and each flow table contains multiple flow table entries.

[0024] The flow table of the openflow switch is numbered sequentially, starting from O. Pipeline processing always starts from the first flow table: the packet matches the flow entry of the first flow table, and other flow tables are invoked according to the matching result of the first flow table.

[0025] When processing according to a certain flow table, match the packet with the...

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Abstract

The invention discloses an alarm method and an alarm device of an openflow flow table. A switch detects a received message and couples the message with a flow table. If a coupled flow table has an alarm behavior, the message is transmitted according to behaviors in the flow table, and then alarm information is sent to a controller according to the alarm behavior. If the coupled flow table does not contain an alarm behavior, the message is directly transmitted according to coupled behaviors. A message active alarm mechanism is provided, the detection sensitivity of the controller is improved, and the safety of equipment is also improved. The controller can be timely informed during the data processing, so that the controller and a manager can timely find and record messages and record alarm logs, and the capability of responding to hostile attacks is enhanced.

Description

technical field [0001] The invention relates to the technical field of message forwarding in network communication, in particular to an alarm method and an alarm device for an openfllow flow table. Background technique [0002] With the development and popularization of the network, more and more disadvantages of the network are exposed, and the requirements of network users for network performance are also constantly increasing. Therefore, researchers have to add many complex functions to the router architecture, such as: Open Shortest Path First (OSPF, Open Shortest Path First), Border Gateway Protocol (BGP, Border Gateway Protocol), multicast, differentiated services , traffic engineering, Network Address Translation (NAT, Network Address Translation), firewall, Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching), etc., which makes switching devices such as routers more and more bloated and has more room for performance improvement Smaller and smaller, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/24H04L12/26
Inventor 刘文畅
Owner SUZHOU CENTEC COMM CO LTD
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