INTERNAL VIRTUAL NETWORK IDENTIFIER AND INTERNAL POLICY IDENTIFIER
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United States of America Patent
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Issued Date -
Dec 8, 2011
app pub date -
Mar 17, 2011
filing date -
Jun 8, 2010
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Abstract
Systems and techniques for processing and forwarding packets are described. Some embodiments provide a system (e.g., a switch) which determines an internal virtual network identifier and/or an internal policy identifier for a packet based on a port on which the packet was received and/or one or more fields in the packet. The system can then process and forward the packet based on the internal virtual network identifier and/or internal policy identifier. In some embodiments, the system encapsulates the packet in a TRILL (Transparent Interconnection of Lots of Links) packet by adding a TRILL header to the packet. In some embodiments, the scope of an internal virtual network identifier and/or an internal policy identifier may not extend beyond a switch or a module within a switch.
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