Multi-tiered virtual local area network (VLAN) domain mapping mechanism
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United States of America Patent
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Mar 3, 2009
Grant Date -
May 17, 2007
app pub date -
Jan 9, 2007
filing date -
Oct 29, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, a first port of a device provides connectivity to a customer network and a second port of the device provides connectivity to a provider network. Frame mapping logic associated with the first port processes a network message received at the first port and accesses a Virtual Local Area Network (VLAN) mapping data structure that maps customer VLAN designations used in the customer network to provider VLAN designations used in the provider network. Frame mapping logic uses the VLAN mapping data structure to associate the received network message with a particular provider VLAN designation based upon the received network message's particular customer VLAN designation. The received network message is then passed toward the second port.
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