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Traffic-forwarding method and device

A technology of traffic forwarding and traffic, applied in the field of communication

Active Publication Date: 2012-04-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] For the situation where multiple devices are virtualized as the same device, effective packet forwarding cannot be performed through MAC address learning

Method used

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  • Traffic-forwarding method and device
  • Traffic-forwarding method and device
  • Traffic-forwarding method and device

Examples

Experimental program
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Embodiment Construction

[0066] The core idea of ​​the present invention is: in the process of the switch learning the MAC address of the message, when it is found that the corresponding relationship between the MAC address and the port has been stored in the MAC table entry, and the port information in the MAC table entry is consistent with the incoming port of the message When inconsistent, add a new corresponding relationship in the MAC table entry, that is, the corresponding relationship between the MAC address and the incoming port of the current message, that is, establish the corresponding relationship between the same MAC address and multiple ports; after the subsequent switch receives the message , look up the MAC entry according to the destination MAC address of the packet. When there are multiple ports corresponding to the destination MAC address in the MAC entry, the switch copies the packet and sends the packet through each port in the MAC entry to ensure that the Effective forwarding of t...

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PUM

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Abstract

The invention discloses a traffic-forwarding method. The method comprises the following steps: according to a received destination MAC address of traffic, a switch searches preliminarily established media access control (MAC) table items and acquires ports corresponding to the MAC address; and the switch copies the traffic and respectively sends the traffic by a plurality of ports corresponding to the MAC address. In the invention, the switch preliminarily establishes the MAC table items and copies and sends the traffic by a plurality of ports when the MAC address of the traffic corresponds to a plurality of ports so as to effectively forward the traffic when a plurality of devices are virtualized into the same device.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for forwarding new traffic. Background technique [0002] In Ethernet, the data packet contains DMAC (Destination Media Access Control, destination media access control) address, SMAC (Source Media Access Control, source media access control) address, when the switch receives the data packet, according to the The SMAC information is used to learn the MAC address, and a MAC entry is established to store the correspondence between the SMAC address and the ingress port. When the subsequent switch performs data forwarding, the switch searches the MAC table entry, and sends the data message through the port corresponding to the DMAC address of the data message in the MAC table entry. [0003] For example, figure 1 The Ethernet forwarding process of Host A, Host B and Host C shown in the same LAN is as follows: [0004] 1. Learn MAC address: [0005] Host B...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/801
Inventor 程作品
Owner NEW H3C TECH CO LTD