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Flow suppression method and apparatus

A technology for suppressing devices and traffic, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as users being unable to go online and messages unable to be sent for a long time

Active Publication Date: 2016-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a traffic suppression method and device, which can better solve the problem that the user cannot go online for a long time due to the long-term failure of the message to be sent

Method used

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  • Flow suppression method and apparatus

Examples

Experimental program
Comparison scheme
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specific Embodiment 1

[0061] When the router device performs Layer 3 forwarding, when the ARP entry of the next-hop device cannot be found, the forwarding plane will trigger the device to actively learn the ARP entry of the peer device by traffic. It is a NO ARP message.

[0062] Figure 6 It is the network diagram of the user's three-layer access mode provided by the embodiment of the present invention. The user accesses the router device in a three-layer manner. When the user has not exchanged messages with the router device, there is no user's ARP on the router device. entry, so it is necessary to trigger the router device to learn the user's ARP by forwarding traffic. If there is a large flow of messages sent to these users at a certain moment, the method provided by the present invention can be used.

[0063] Figure 7 It is a flow chart of the NO ARP suppression implementation algorithm provided by the embodiment of the present invention, such as Figure 7 As shown, the detailed descripti...

specific Embodiment 2

[0075] When the router device performs Layer 2 forwarding, when the source MAC address of the packet cannot be found in the MAC forwarding table, the forwarding plane of the device will actively send information such as the source MAC address of the packet to the CPU to learn the source MAC address.

[0076] Figure 8 It is the network diagram of the user layer 2 access mode provided by the embodiment of the present invention, as shown in Figure 8 As shown, the traffic source simulates N users sending packets to the device. Before the traffic enters the device, there is no MAC forwarding table for the traffic source on the device. Therefore, it is necessary to trigger the router device to generate a MAC forwarding table by forwarding traffic. When the traffic source has N MAC addresses and needs to generate a MAC forwarding table on the device, the method provided by the present invention can be used.

[0077] Figure 9 is a flow chart of the MAC learning suppression implem...

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Abstract

The present invention discloses a flow suppression method and apparatus, which relates to the field of network communication equipment. The method includes: generating a sending suppression table according to the key information of the message when the message is sent to the CPU; determining whether the current message has been sent to the CPU by using the sending suppression table for the current message to be sent to the CPU; if it is determined that the current message has been sent, performing the message flow suppression processing on the current message. The invention can not only ensure the data message of each user to be sent, but also can prevent the single user from sending large flow data to the CPU, so as to protect the router device.

Description

technical field [0001] The invention relates to the field of network communication equipment, in particular to a traffic suppression method and device. Background technique [0002] With the rapid development of the Internet, more and more enterprises rely on network services to accelerate their own development. However, the Internet is an open network environment, and network security has increasingly become an issue considered and valued by enterprises and operators, and network attacks on core routers have also become more and more common. Common attacks include Distributed Denial of Service (Distributed Denial of Service, DDOS) attack, Address Resolution Protocol (Address Resolution Protocol, ARP) attack, Internet Control Message Protocol (Internet ControlMessage Protocol, ICMP) attack, etc. These traffic is legal traffic, but Due to the excessive traffic, the processing load of the control plane of the router is too large and the central processing unit (Central Proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801
Inventor 魏涛叶正鑫钟炜
Owner ZTE CORP