Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-11-08
2005-11-08
Patel, Ajit (Department: 2664)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S429000, C370S468000, C370S219000, C370S389000
Reexamination Certificate
active
06963578
ABSTRACT:
A router comprising a priority level distinguishing means for distinguishing the priority level of a packet by referring to the information contained in the header of the packet, a routing table where an output path comprising one or more output lines can be mapped to each level of priority, an output path determining unit that searches the routing table and determines an output path to be used for sending out packets, and a preferential delivery controller that executes delivery control in accordance with the priority level for each output line corresponding to the output path. In response to a fault state in a preferred output line, the router can reroute high priority packets over an alternative output line while maintaining priority. The router may also calculate a distribution ratio to determine the optimal load for each output line for a given packet priority.
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Aimoto Takeshi
Akahane Shinichi
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Hitachi , Ltd.
Patel Ajit
Reed Smith LLP
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