System and method for connecting geographically distributed virtual local area networks
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United States of America Patent
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Aug 8, 2006
Grant Date -
Mar 7, 2002
app pub date -
Aug 23, 2001
filing date -
Aug 24, 2000
priority date (Note) -
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Abstract
A VLAN tagging unit associated with a WAN is used to add VLAN tags based upon logical interfaces. In one example, data received across the logical interface is tagged with an associated VLAN ID by the unit. In another embodiment, flow-based VLAN tagging is done in which in addition to the logical interface other indications are used in the VLAN tagging.
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