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Exchange equipment and its message processing method for preventing flow attack

A switching device and message processing technology, applied in the field of network security, can solve problems such as traffic impact, achieve the effect of preventing traffic impact and reducing workload

Active Publication Date: 2009-06-10
HEWLETT-PACKARD ENTERPRISE DEV LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem that in the prior art, the CPU passively receives the message sent by the forwarding chip, which makes it vulnerable to traffic impact.

Method used

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  • Exchange equipment and its message processing method for preventing flow attack
  • Exchange equipment and its message processing method for preventing flow attack
  • Exchange equipment and its message processing method for preventing flow attack

Examples

Experimental program
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Embodiment Construction

[0035] In the prior art, the situation that may cause traffic impact on the processing unit is usually to continuously send a certain type of message to the switching device for a period of time, and this type of message will be sent to the processing unit by the forwarding chip, and then processed The unit performs related processing according to the protocol adopted by the message. Because the speed of the processing unit for protocol processing on the message is often lower than the forwarding speed of the forwarding chip, the impact on the processing unit is caused.

[0036] The common features of these situations include: the message causing the impact has the same feature; the processing unit performs the same repeated processing on the sent message, and the repeated processing has the same effect as the one-time processing. It can be seen that as long as the number of times the processing unit processes these packets with the same characteristics is reduced, traffic imp...

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PUM

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Abstract

Present invention discloses message processing method for preventing flow rate impulsion. It includes setting retransmission unit to transmit message with preset Characteristic to processing unit, after processing unit receiving message setting retransmission unit directly transmitting message instead of up delivering to processing unit. Said invention also discloses exchange equipment using above-mentioned method. Said invention prevents flow rate impulsion to processing unit and relieves retransmission unit load.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a message processing method for preventing traffic impact. Background technique [0002] Switching equipment is the most widely used network equipment in various networking structures. With the application and development of Layer 3 and Layer 4 switches, switching equipment is taking on more and more critical tasks in network operations. At the same time, malicious attacks against switching devices have also increased accordingly. [0003] When the switching device is working normally, the received message is first processed by the forwarding chip. The forwarding chip usually performs the following two processing operations on the received messages according to the set working parameters: most messages are forwarded by the forwarding chip; other messages are sent by the forwarding chip to the processing unit CPU (Central Process Unit) in the switching device. , central...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/801
Inventor 吕琳周迪
Owner HEWLETT-PACKARD ENTERPRISE DEV LP
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