| 摘要 |
<p>The present invention provides a flow based processing method and system in Virtual Local Area Network (VLAN), in the method a VLAN processing procedure for uplink data flow is included: a double tag normalization is performed for the data flow entering the port; a facing customers port uplink processing is performed for the data steam, including for the data flow to be processed, creating a flow identifier, setting a virtual port number, and replacing the outer lag with the target VLAN; an uplink port uplink process is performed for the data flow, including removing inner tag for the data flow after the facing customers port processing. A VLAN processing procedure for downlink data flow is also included: an uplink port downlink processing is performed for the data flow, including for the data flow to be processed, creating a flow identifier, and replacing the outer lag with the target VLAN; a facing customers port downlink processing is performed for the data flow, including removing outer tag for the data flow after the uplink port downlink processing, and replacing the inner tag with the VLAN corresponding to the virtual port number. The present invention enables any modification to the flow tags at the same port.</p> |
