Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2003-09-19
2009-12-15
Sheikh, Ayaz R (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000
Reexamination Certificate
active
07633937
ABSTRACT:
According to the present invention, methods and apparatus are provided to allow efficient switching of frames for transmission between a Layer 2 Virtual Local Area Network such as a Metro Ethernet Network and an external network. Reserved inner tags are used to identify particular services. In one example, inner tags allow mapping of frames associated with a particular subnetwork onto a particular virtual circuit associated with an ATM network.
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Indiresan Atri
Vickroy John
Wu Michael
Cisco Technology Inc.
Ho Chuong T
Sheikh Ayaz R
Weaver Austin Villeneuve & Sampson LLP
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