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Method for access network realizing double layer VLAN Ethernet message forwarding and access node

A technology of message forwarding and access nodes, which is applied in the field of network communication, can solve problems such as the complexity of the message forwarding process, achieve the effect of improving message forwarding efficiency and simplifying the message forwarding process

Inactive Publication Date: 2008-12-10
JIANGSU HENGYUAN METAL MATERIALS
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Problems solved by technology

The packet forwarding process of the access node is complicated

Method used

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  • Method for access network realizing double layer VLAN Ethernet message forwarding and access node

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Embodiment Construction

[0041] The core of the method of the present invention is: according to the access user type, the Ethernet type of the inner layer VLAN of the double-layer VLAN Ethernet message is encapsulated into different values, and is transmitted to the access node through the uplink port of the access node, The access node directly determines the access user type according to the Ethernet type of the inner VLAN of the received message, and the access node forwards the message according to the access user type.

[0042] The technical solution provided by the present invention will be further described below based on the core idea of ​​the present invention.

[0043] The present invention first needs to set different values ​​of the Ethernet type of the inner layer VLAN of the message according to different types of access users, that is, the Ethernet type of the inner layer VLAN of the message bears the identification information of the type of access user.

[0044] The Ethernet type of ...

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Abstract

The present invention provides a method and an access node for an access network to realize the forwarding of double-layer VLAN Ethernet messages. The type is encapsulated into different values ​​and transmitted to the access node through the uplink port of the access node. The access node directly determines the access user type according to the Ethernet type of the inner VLAN of the received message. Access user type for packet forwarding. The invention avoids the process of the access node searching for the access user type according to the S-VLAN, enables the access node to conveniently, quickly and accurately determine the access user type of the message, and enables the access node to be conveniently applicable to different applications Message forwarding in the scene; thus, the purpose of simplifying the message forwarding process of the access node and improving the message forwarding efficiency of the access node is realized.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and an access node for an access network to realize double-layer VLAN Ethernet message forwarding. Background technique [0002] In WT101 of the DSL Forum (Digital Subscriber Line Forum), in order to improve the scalability of the network scale, the double-layer VLAN (virtual local area network) defined by IEEE 802.1ad, that is, the VLAN Stack (stack), is used as a gateway for accessing enterprise and residential users. The inner VLAN is called user VLAN or C-VLAN, and the outer VLAN is called service VLAN or S-VLAN. [0003] IEEE 802.1ad stipulates that the inner VLAN uses the same EtherType (Ethernet type) value 0x8100 as IEEE 802.1Q as the symbol of C-VLAN, and the outer VLAN adopts an EtherType value different from the inner VLAN to distinguish it from C-VLAN. . The specific value of the outer VLAN has not been determined yet. [0004] According to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/28H04L12/715
Inventor 李桥
Owner JIANGSU HENGYUAN METAL MATERIALS
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