Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2008-08-01
2010-10-12
Pham, Chi H. (Department: 2471)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S252000, C370S397000
Reexamination Certificate
active
07813285
ABSTRACT:
A method is disclosed for controlling the flow of packets aggregated from multiple logical ports over a transport link. A directed flow control indicator is provided to the transmitting end station that causes a detected congestion condition. The directed flow control indicator causes the transmitting end station to suspend the transmission of further packets. The linear expansion header of the Generic Framing Procedure (GFP) linear mapping scheme is extended to include the flow control indicator, such as a bit indicating a potential overload condition. A directed flow control indication can be provided in one or more packets sent to the transmitting end station over the transport network without increasing the network overhead. If packets are not being sent to the appropriate transmitting end station, a packet generator can generate one or more packets with the flow control indicator to inform the appropriate transmitting end station of the congestion condition.
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Bordogna Mark A.
Cidambara Sundararajan
Healey Adam B.
Agere Systems Inc.
Mew Kevin
Pham Chi H.
Ryan & Mason & Lewis, LLP
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