Multiplex communications – Channel assignment techniques – Polling
Reexamination Certificate
2004-01-30
2008-08-12
Pham, Chi H. (Department: 2616)
Multiplex communications
Channel assignment techniques
Polling
C370S423000, C370S426000, C370S429000, C710S109000
Reexamination Certificate
active
07411972
ABSTRACT:
In a communication system comprising a link layer device connectable to one or more physical layer devices, at least a given one of a plurality of ports of the one or more physical layer devices is designated as a port for which status information is to be requested by the link layer device on a more frequent basis than such information is to be requested for one or more other ports of the plurality of ports. The ports are then polled by the link layer device in accordance with a non-linear polling sequence such that the at least one designated port is polled more frequently than the one or more other ports. The designated port may comprise a port to which the link layer device transmits data in conjunction with a current data transfer. The non-linear polling sequence may thus be altered dynamically based on particular data transfers that are occurring between a link layer device and a physical layer device in a communication system.
REFERENCES:
patent: 6671758 (2003-12-01), Cam et al.
patent: 6735773 (2004-05-01), Trinh et al.
patent: 6850523 (2005-02-01), Karr et al.
patent: 6854025 (2005-02-01), Knight et al.
patent: 7007095 (2006-02-01), Chen et al.
patent: 7110358 (2006-09-01), Clinton et al.
patent: 7111102 (2006-09-01), Doak et al.
patent: 7159061 (2007-01-01), Khan et al.
patent: 2003/0126296 (2003-07-01), Aviles
patent: 2004/0030816 (2004-02-01), Knight et al.
patent: 2004/0120335 (2004-06-01), Friesen et al.
patent: 2005/0068974 (2005-03-01), Barker et al.
patent: 2005/0149602 (2005-07-01), Venkatachalam et al.
U.S. Appl. No. 10/689,090, filed Oct. 20, 2003, K.S. Grant et al., “Traffic Management Using In-Band Flow Control and Multiple-Rate Traffic Shaping”.
Agere Systems, Product Brief, “Edge/Access and Multiservice Network Processors: APP550 and APP530,” pp. 1-4, May 2003.
Implementation Agreement: OIF-SPI3-01.0, “System Packet Interface Level 3 (SPI-3): OC-48 System Interface for Physical and Link Layer Devices,” Optical Internetworking Forum, pp. 1-42, 2001.
Khan Asif Q.
Kramer David B.
Agere Systems Inc.
Elallam Ahmed
Pham Chi H.
Ryan & Mason & Lewis, LLP
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