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Broadcast storm suppression method and system

A technology for broadcast storm suppression and broadcast data packets, applied in the field of communication, can solve problems such as growth and VLAN broadcast packet flooding, and achieve the effect of ensuring stable operation, reducing broadcast packet flooding, and reducing ARP broadcast data packets.

Active Publication Date: 2016-03-30
CHENGDU SKSPRUCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the number of user accesses increases, the number of broadcast packets in the network will increase geometrically, which will easily cause flooding of broadcast packets in the VLAN.

Method used

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  • Broadcast storm suppression method and system
  • Broadcast storm suppression method and system
  • Broadcast storm suppression method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] figure 2 Shown is a flowchart of a broadcast storm suppression method described in this embodiment, and the method includes:

[0059] S210: the client side sends a broadcast data packet to the gateway device;

[0060] S220: The gateway device receives the broadcast data packet, filters the broadcast data packet according to the type of the broadcast data packet, and retains the broadcast data packet of the set type.

[0061] In this embodiment, the client side sends the broadcast data packet through the corresponding node and the tunnel between the node and the gateway device.

[0062] Such as image 3 As shown, the VLAN numbered 200 in this embodiment includes four clients, which are respectively: the first client U1, the second client U2, the third client U3, and the fourth client U4; wherein, the first The client U1 and the second client U2 are connected to the gateway device SKG through the first access node AP1 and the first tunnel T1 (in this embodiment, the g...

Embodiment 2

[0065] This embodiment includes the content of the method in Embodiment 1, but further, in this embodiment, the broadcast data packet sent by the client includes a DHCP broadcast data packet;

[0066] After the step of receiving the broadcast data packet by the gateway device, it also includes:

[0067] Perform DHCP snooping (DHCPSnooping) on ​​the DHCP broadcast data packet at the gateway device side, and prevent the DHCP broadcast data packet sent by the client side through the corresponding tunnel from being sent to other tunnels.

[0068] The process of exchanging DHCP messages between the client and the gateway device is as follows:

[0069] 1) The client broadcasts a DHCP Discover (DHCPDiscover) message in its subnet, which contains the value of the network address and lease option;

[0070] 2) The gateway device that receives this message broadcasts a DHCP offer (DHCPOffer) message that contains available network addresses and other configuration information;

[0071]...

Embodiment 3

[0081] This embodiment includes the content of the method in Embodiment 1, but further, in this embodiment, the broadcast data packet includes a DHCP broadcast data packet;

[0082] After the step of receiving the broadcast data packet by the gateway device, it also includes:

[0083] Generate a corresponding DHCP reply message for the corresponding DHCP message in the DHCP broadcast data packet sent by the client side (the DHCP offer message corresponding to the DHCP discovery message, and the DHCP confirmation message corresponding to the DHCP request message message or DHCP negative acknowledgment message);

[0084] The DHCP reply message is returned to the corresponding client by means of a unicast message.

[0085] Among them, unicast is a process of forwarding unicast communication from source to destination in the network, and unicast communication is destined for a unique address. In this case, there is only one sender and one receiver. In this embodiment, the sender...

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PUM

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Abstract

The invention discloses a method and a system for suppressing a broadcast storm. The method comprises that a client side sends broadcast data packets to a gateway device; and the gateway device receives the broadcast data packets, screens the broadcast data packets according to the types of the broadcast data packets and reserves broadcast data packets of set types. According to the method and the system for suppressing the broadcast storm, the gateway device screens the broadcast data packets and only reserves broadcast data packets of set types, so that broadcast message flooding between tunnels is greatly reduced, and stable operation of systems is guaranteed.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a broadcast storm suppression method and system. Background technique [0002] Due to the design of the network topology and connection problems or other reasons, the broadcast replicates and propagates a large number of data frames in the network segment, and occupies a large amount of network bandwidth, affecting system performance, causing normal business to fail, and even the network to be paralyzed. This is a broadcast storm. . Broadcast storms can also be caused when the protocol stack is running or the network configuration is wrong. [0003] Address Resolution Protocol (AddressResolutionProtocol, ARP) is a Transmission Control Protocol / Internet Protocol (TransmissionControlProtocol / InternetProtocol, TCP / IP protocol) for obtaining physical addresses. After the ARP request of the IP address of a node is broadcast to the network, the node will receive a resp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26
Inventor 雷永成
Owner CHENGDU SKSPRUCE TECH