Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2002-11-15
2008-12-23
Nguyen, Hanh (Department: 2416)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S420000, C370S390000, C370S352000, C370S395500
Reexamination Certificate
active
07468986
ABSTRACT:
The present invention relates generally to a data communication system, a virtual interworking trunk interface within a device to form a universal virtual private network, and methods of operating a virtual private network. In a particular embodiment, the data communication system includes a first portion of a virtual private network, a second portion of the virtual private network, a virtual switch instance associated with the first portion of the virtual private network, a virtual router instance associated with the second portion of the virtual private network, and a virtual interworking trunk interface coupled to the virtual switch instance and to the virtual router instance.
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Liu Kuo-Hui
Yuan Chin
AT&T Intellectual Property I.L.P.
Nguyen Hanh
Toler Law Group
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