Method and device for realizing double vlan cross forwarding

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...

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.

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