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Method and device for achieving message layer-2 isolation based on VLAN and interchanger

A layer-2 isolation and message technology, applied in the field of network communication, to improve efficiency and save ACL entry resources

Active Publication Date: 2015-06-24
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a method, device and switch for realizing Layer 2 isolation of messages based on virtual local area network (VLAN), so as to solve the problem in the prior art that the Layer 2 isolation of VLAN cannot be flexibly determined

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  • Method and device for achieving message layer-2 isolation based on VLAN and interchanger
  • Method and device for achieving message layer-2 isolation based on VLAN and interchanger
  • Method and device for achieving message layer-2 isolation based on VLAN and interchanger

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Embodiment Construction

[0043] The method, device and switch for realizing Layer 2 isolation of packets based on VLAN provided by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0044] The embodiment of the present invention provides a method for realizing Layer 2 isolation of packets based on VLAN, such as figure 1 shown, including:

[0045] Step 101, receive and parse the message.

[0046]Specifically, the switch receives and parses the received message, and after parsing the message, the content carried in the message can be obtained. The content carried in the message includes the VLAN ID (Virtual Local Area Network Identity, Virtual Local Area Network Identity, Virtual Local Area Network Identity) that sends the message. LAN ID number). The method for parsing the message is an existing method, and will not be repeated here. ID (id) is the identification number, Identity.

[0047] Step 102: Determine that the VLAN ID ...

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Abstract

The invention provides a method and device for achieving message layer-2 isolation based on a VLAN and an interchanger. The method includes the steps that a message is received and analyzed; when it is determined that the VLAN ID carried in the analyzed message is a preset VLAN ID and the analyzed message is in a layer-2 forwarding mode, layer-2 isolation is conducted on the analyzed message. According to the method and device, layer-2 isolation can be conducted on the message from the specific VLAN ID flexibly, and the problems existing in a port isolation method in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method, device and switch for realizing layer-2 isolation of messages based on VLAN. Background technique [0002] VLAN (Virtual Local Area Network, Virtual Local Area Network) is the logical segmentation of network users connected to the port of the second-layer switch. It is not restricted by the physical location of network users and is segmented according to user needs. VLANs can be grouped according to the location, role, or department of network users, or according to the applications and protocols used by network users. The data transmission between different VLANs is realized through the routing of the third layer (network layer), so the use of VLAN technology, combined with the switching equipment of the data link layer and the network layer, can build a safe and reliable network. Access control methods based on VLAN isolation technology are widely used ...

Claims

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Application Information

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IPC IPC(8): H04L12/715H04L12/46
Inventor 林鹏苏桂能
Owner RUIJIE NETWORKS CO LTD
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