Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-10-17
2006-10-17
Phan, Man U. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S230000, C370S443000
Reexamination Certificate
active
07123619
ABSTRACT:
An ATM network, in which the downward data rate, from the network to the users, is greater than the upward data rate, from the users to the network. Multiplexers are provided for establishing connections, constituting virtual channels, between users and the network; the virtual channels are grouped into virtual paths. In each multiplexer close to the user, the bandwidth allocated to each downward virtual path is variable under the control of a call control means provided upstream in a switching node, and the upward virtual channels have a fixed bandwidth. Preferably, in the downward direction, each virtual channel is assigned a permanent or semi permanent quality of service.
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ALCATEL
Phan Man U.
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