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Message processing control method and device

A technology of message processing and control device, applied in the field of network communication, can solve problems such as the inability of VLAN to meet requirements, and achieve the effects of simple termination processing mechanism, high reliability, and low implementation cost

Active Publication Date: 2013-05-15
XINHUASAN INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 4094 VLANs are far from meeting the demand, and QinQ is created in this situation

Method used

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  • Message processing control method and device

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Embodiment Construction

[0019] Please refer to figure 1 , from the perspective of QinQ, in the user network, the planned VLAN is usually called C-VLAN (C-VLAN); and the public network VLAN allocated by the operator to the user network is called S-VLAN (S-VLAN ). When a packet sent by a host in the user network reaches the user's access switch, the packet will be encapsulated with a corresponding C-VLAN Tag during forwarding processing. When the packet carrying the C-VLAN Tag enters the carrier network and arrives at the QinQ-enabled aggregation switch B, the packet will be encapsulated with the VLAN Tag corresponding to the S-VLAN. The re-encapsulated message will be forwarded based on S-VLAN in the carrier network; however, if the message is to be sent to the external Internet, it needs to perform VLAN termination on the egress gateway (core switch C), At this time, the core switch C needs to remove the two-layer VLAN tag of the message, then process the message according to the normal three-layer...

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Abstract

The invention provides a message processing control method and a corresponding device. The message processing control method and the corresponding device are applied to network equipment. The network equipment comprises a downstream port and an upstream port which face a user main machine. A virtual local area network (VLAN) filter function of the downstream port is arranged to be closed. The message processing control method includes the following steps. Firstly, the downstream port is used for receiving an address resolution protocol (APR) message from the user main machine and APR study is performed on the APR message. A user VLAN identity carried by the message is stored in an APR list item. Secondly, when a next skip list item of the user main machine is added, the stored user VLAN identity in the APR list item corresponding to the user main machine is added to a corresponding next skip list item. The message processing control method and the corresponding device provide a quite simple QinQ finalization processing mechanism, a converging exchanging machine with a QinQ function is achieved and low in cost, high in reliability and free of user deployment. Meanwhile, a user network can freely project own C-VLAN and VLAN sources are multiplexed to the outmost.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for controlling message processing of remote branch equipment. Background technique [0002] In the early LAN technology, the division of the LAN is the division of the physical level. With the advancement of switch technology and the development of related standards, virtual local area network (Virtual Local Area Network, VLAN) technology emerged. The use of VLAN technology allows logically dividing a regional network into multiple local area networks. Each VLAN can be understood as a Layer 2 network, or as a Layer 2 broadcast domain. Hosts in the same VLAN can communicate with each other through Layer 2, while hosts in different VLANs are isolated from each other on Layer 2. If hosts in two VLANs want to communicate with each other, they need to pass Layer 3 forwarding. . [0003] In the metropolitan area network, it is often necessary to use VLAN to...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L12/70
Inventor 李彬荣刘如冰王锋席永青
Owner XINHUASAN INFORMATION TECH CO LTD
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