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Method and device for realizing double vlan cross forwarding

A technology of cross-connection and conversion table, which is applied in the field of Ethernet switching, can solve the problems that a cross-connection cannot be made, the cross-connection granularity cannot be flexibly configured, and the requirements of users cannot be well met, so as to achieve the effect of saving address space

Active Publication Date: 2014-10-08
FENGHUO COMM SCI & TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) Only bidirectional VLAN point-to-point cross-connection is supported, and one forwarding direction cannot be cross-connected according to VLAN, and the other direction is forwarded according to address lookup
Cannot support point-to-multipoint cross-connect
[0011] (2) The cross granularity cannot be flexibly configured
[0012] It can be seen that the existing two-way VLAN cross-connect method and device can not meet the user's requirements well.

Method used

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  • Method and device for realizing double vlan cross forwarding
  • Method and device for realizing double vlan cross forwarding
  • Method and device for realizing double vlan cross forwarding

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In the present invention, the following terms are defined as follows:

[0035] SVID: the service (outer layer) virtual local area network identifier carried on the input data stream, which can be expressed as SVID1, SVID2, SVID3, etc. according to different values;

[0036] CVID: The client (inner layer) virtual local area network identifier carried by the input data stream, which can be expressed as CVID1, CVID2, CVID3, etc. according to different values;

[0037] INTER_SVID: the service (outer layer) virtual local area network identifier defined in the present invention;

[0038] INTER_CVID: the client (inner layer) virtual local area network identifier defined in the present invention;

[0039] In this embodiment, a cross-forwarding device for an 8-port switch is used as an example for illustration, and the following data flows ar...

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Abstract

The invention discloses a method and device for realizing double-VLAN cross-forwarding in a network bridge. The method includes the following steps: A10, configuring a VLAN conversion table and a VLAN function configuration table, and the VLAN conversion table is used to convert the SVID and CVID is converted into INTER_SVID and INTER_CVID; A20, configure the VLAN exchange mode configuration table, determine the forwarding mode of the data flow of input according to the VLAN exchange mode configuration table, if it is a traditional network bridge switching service, then process according to the traditional network bridge; otherwise perform step A30; A30, configure the VLAN cross-connection table, search the corresponding result information in the VLAN cross-connection table according to the search information of each input data flow, if found, then forward the data flow according to the result information, otherwise process it in the traditional bridge mode. The present invention can directly forward according to the link information of the access point, realize point-to-multipoint cross-connection, and flexibly realize cross-forwarding with different granularity based on SVID or SVID+CVID; it can converge according to SVID and CVID, Complete the multipoint-to-point VLAN cross setting.

Description

technical field [0001] The present invention relates to the Ethernet switching technology in the technical field of data communication, in particular to a method and a device for realizing double-VLAN cross-forwarding, which can be used for Ethernet convergence networks and access nodes defined in TR101 (for example, when the access node adopts GPON technology), it can also be used in other places that need to exchange data streams according to VLAN. Background technique [0002] With the rapid development of data communication technology, a variety of network applications continue to emerge, such as: basic Internet applications, entertainment videos (including broadcast TV, video on demand, etc.), video conferencing, VOIP (Internet telephony), games and various commercial applications, etc. However, in actual network applications, such a situation is often encountered: most of the same type of network services (such as IPTV) correspond to a specific broadband gateway (serv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70H04L12/46H04L12/947
Inventor 黄元波杨彦波鲁鹏左越
Owner FENGHUO COMM SCI & TECH CO LTD
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