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Message processing method and exchange apparatus based on virtual local area network

A technology of virtual local area network and switching equipment, which is applied in the field of message processing method and switching equipment based on virtual local area network, can solve the problems of limiting isolation technology, etc., and achieve the effect of saving time and obvious effect

Active Publication Date: 2010-05-05
RUIJIE NETWORKS CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing isolation technology requires hardware support - using switch chips that support independent port isolation technology, and because the switch chips that support isolation technology are only available in some manufacturers, the application of isolation technology is limited

Method used

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  • Message processing method and exchange apparatus based on virtual local area network
  • Message processing method and exchange apparatus based on virtual local area network
  • Message processing method and exchange apparatus based on virtual local area network

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Embodiment Construction

[0026] The virtual local area network-based message processing method and switching equipment proposed by the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027]Existing switching nodes (switches) based on virtual local area network VLAN (Virtual Local Area Network) generally have an address forwarding table (also known as forwarding database FDB (forwarding database)), and switches use MAC (Media Access Control, media access control) address learning Mechanism to establish an address forwarding table. The specific process is: the switch receives packets from all its ports. When the source MAC address in the packet does not appear in the FDB, it will include the source MAC address in the packet and the port receiving the packet. The entry of the information is added to the FDB, and the FDB table includes multiple entries. The FDB is searched for the entry matching the destination MAC address of the packet, an...

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Abstract

The invention discloses a message processing method and an exchange apparatus based on a virtual local area network. The method comprises the following steps of: inquiring a first address transfer table process to the message received from a non-isolating port; inquiring a second address transfer table process to the message received from an isolating port; when receiving the message a source address of which is a new address, from the non-isolating port, adding table items including the source address, the receiving port and a set transfer action information in the first address transfer table, and copying the table items to the second address transfer table; when receiving the message the source address of which is a new address, from the isolating port, adding table items including the source address, the receiving port and a set transfer action information in the second address transfer table and copying to the first address transfer table, and then modifying the transfer action in the second address transfer table as a discarding action. The invention is unnecessary to be supported by an individual source and an individual control module; the application of an isolating technology is realized in the message transmission through directly inquiring the address transfer table.

Description

technical field [0001] The invention relates to the technical field of Ethernet switching, in particular to a message processing method and switching equipment based on a virtual local area network (Virtual Local Area Network, VLAN). Background technique [0002] With the rapid development of the network, users have put forward higher requirements for the security of network data communication, requiring to ensure the relative security of network user communication, such as preventing hacker attacks and controlling the spread of viruses. In each layer of the protocol stack, there are corresponding technologies to prevent attacks. Since the data link layer (also known as the second layer) has phenomena such as broadcasting, multicasting, and flooding, it is easy to cause bandwidth waste and be used for attacks, etc. Therefore, a virtual local area network (VLAN) technology is proposed to solve these problems. question. The traditional solution is to assign a VLAN and relate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/74
Inventor 高兴福
Owner RUIJIE NETWORKS CO LTD
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