Derived VLAN mapping technique
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United States of America Patent
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Mar 27, 2001
Grant Date -
N/A
app pub date -
Mar 11, 1998
filing date -
Mar 11, 1998
priority date (Note) -
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Abstract
A derived virtual local area network (VLAN) mapping technique enables centralized control of broadcast domains by a switch capable of supporting different protocols carried within frames that are distributed throughout a computer internetwork. Associated with each incoming frame received at the switch are characteristics such as protocol type and/or subnet information, and associated with each input port of the switch are characteristics such as VLAN and/or index values. Utilizing certain of these characteristics, a derived VLAN value is generated that allows users to create arbitrary VLAN domains and reduce broadcast traffic received by stations of the domains.
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