Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-01-22
2008-01-22
Shah, Chirag G. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395410, C370S468000, C370S230000
Reexamination Certificate
active
07321594
ABSTRACT:
An output port circuit is provided for a router apparatus which routes and transmits a received packet. Each flow is constituted by continuous packets and belongs to a bandwidth-guaranteed class or a best-effort class. A controller controls storage and reading of a packet into and from a storage unit. Upon allocating a basic volume that is a criterion of a memory size stored in the storage unit to each flow to which the packet to be transmitted belongs, the controller manages the basic volume of each flow of the packet belonging to the bandwidth-guaranteed class by individually allocating the basic volume by the memory size required by each flow, and manages the basic volume of each flow of the packets belonging to the best-effort class by collectively allocating the memory size obtained by subtracting a sum of respective basic volumes allocated to the bandwidth-guaranteed class from an entire memory size.
REFERENCES:
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Minami et al; “Per-Flow Buffer Management Scheme With Class-Based Priority in the Internet Router”; The Technical Report of the Institute of Electronics, Information and Communication Engineers in Japan (IEICE), SSE99-175, IN99-138, issued by IEICE, pp. 85-90, Mar. 2000.
Minami et al; “Buffer Control Scheme Considering Service Class of Flows”; Transactions on Communications of the Institute of Electronics, Information and Communication Engineers in Japan (IEICE), issued by IEICE, vol. E85-b, No. 1, pp. 98-106, Jan. 2002.
Kinoshita Kazuhiko
Minami Katsuya
Murakami Koso
Tode Hideki
Nixon & Vanderhye P.C.
Semiconductor Technology Academic Research Center
Shah Chirag G.
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