Two-layer message isolating method

A message and user technology, applied in the direction of data exchange through path configuration, can solve the problem that the router cannot support the 802.1Q protocol, and achieve the effect of reducing the number of requirements, reducing the cost of the entire network, and flexible networking

Inactive Publication Date: 2004-06-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, existing routers generally cannot support the 802.1Q protocol.
Therefore, in the networking, only Layer 3 switches or network devices supporting the 802.1Q protocol can be considered as Layer 3 forwarding devices, which imposes restrictions on the user's networking

Method used

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Examples

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Embodiment Construction

[0025] The method that the present invention proposes realizes the two-layer isolation of message in Ethernet switchboard, at first configure main virtual local area network on Ethernet switchboard, this main virtual local area network comprises an uplink port and a plurality of user access ports; On Ethernet switchboard Configure the sub-virtual local area network, and assign the sub-virtual local area network to the above-mentioned user access port, and the sub-virtual local area network shares the uplink port with the above-mentioned main virtual local area network; Add the identification of the corresponding sub-virtual local area network to the message of the network switch; when forwarding the message from the uplink port to the upper layer device, delete the identification of the sub-virtual local area network in the message.

[0026] When the upper-layer device forwards the downlink packet to the uplink port of the lower-layer Ethernet switch, it adds the identification...

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Abstract

The two-layer message isolating method belongs to the field of network data transmission technology. The method includes first configuring main virtual LAN comprising over one upstream port and several user access ports in Ethernet exchanger; assigning one son virtual LAN to share the upstream port and user access port of the main virtual LAN for the user access port in Ethernet exchanger; adding son virtual LAN mark to upstream user message; and deleting the son virtual LAN mark in the message transmitted to upper equipment. The method separates message with two layers of virtual LAN, saves the virtual LAN resource and saves IP web segment.

Description

technical field [0001] The invention relates to a method for realizing two-layer isolation of messages, which belongs to the technical field of network data transmission. Background technique [0002] In the main application environment of the Ethernet switch——in community access, users are generally required to be isolated on the second layer. Therefore, to achieve intercommunication between users, they must go through the third layer and use IP addresses to communicate. From a technical point of view, it is not difficult to meet this requirement, because one of the basic functions of a virtual local area network is to isolate users at the second layer, as long as a port on the switch is provided for a user, and each port is assigned to a different The virtual local area network can realize the second layer isolation of users. If the switch chip supports setting, the ports in the same virtual local area network cannot communicate at the second layer, then multiple users ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28
Inventor 孟小虎徐进姚析
Owner HUAWEI TECH CO LTD
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