Broadcast storm control system and method

A technology for broadcast storms and control systems, applied in transmission systems, digital transmission systems, instruments, etc., to solve problems such as port 2 congestion

Inactive Publication Date: 2007-05-23
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If port 24 is a high-speed port (Giga Port), port 24 transmits more packets than port 0, and causes congestion on port 2 (Congestion), the existing broadcast storm control mechanism will stop port 0 and 24 from transmitting broadcasts again package, as shown in Figure 1B

Method used

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  • Broadcast storm control system and method
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  • Broadcast storm control system and method

Examples

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Embodiment Construction

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, the following specific examples will be described in detail with reference to the accompanying drawings.

[0026] The invention provides a broadcast storm control system and method.

[0027] Fig. 2 shows a broadcast storm control system according to an embodiment of the present invention. System 1000 may be a network switch. The system 1000 includes a plurality of ports ( 1210 , 1220 , 1230 , 1240 , 1250 , 1260 , 1270 and 1280 ) and a processing module 1100 . Each port has a respective admission rate. Each port is connected to various interfaces and devices, and packets are received by these interfaces and devices. These received packets are sent to the processing module 1100 through the connections (1213, 1223, 1233, 1243, 1253, 1263, 1273 and 1283) for subsequent processing. The processing module 1100 includes a Media Access Control (MAC) address tab...

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Abstract

The present invention provides a broadcast storm control system and method. Said broadcast storm control system comprises a plurality of ports and a processing module, wherein each port comprising an arithmometer used for taking count of the number of broadcast packets which are received in a unit time, and a corresponding discarding marker which depends on enumerated data and an ingress rate of the port. The processing module receives a packet from a special port out of these ports, and then discards or transmits the packet to at least one port among these ports, according to the discarding marker corresponding to the special port. The broadcast storm control system and method in accordance with the present invention is capable of preventing broadcast packets from all the ports being stopped transmitting.

Description

technical field [0001] The present invention relates to network transmission, and particularly relates to a broadcast storm (Broadcast Control) control system and method. Background technique [0002] In network transmission, a switch (Switch) has multiple ports (Port) to connect to multiple packet switching network segments (Network Segment), and forwards data packets (Packet ). When a packet is received by a port, the switch can selectively transmit the packet through the specific port according to the destination MAC address recorded in the packet. If the destination MAC address is known, the packet will be forwarded to the corresponding port recorded in the MAC address table. If the destination MAC address is unknown, for example, a broadcast address, the switch will forward the packet to all ports except the port that received the packet. If the destination port is the same as the original source port, the packet is not forwarded but filtered out. [0003] When broa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
CPCG06F13/387H04L49/201
Inventor 陈维彬钟名超王俊程陈英钟
Owner VIA TECH INC
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