Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2005-11-14
2009-10-13
Marcelo, Melvin (Department: 2416)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
Reexamination Certificate
active
07602724
ABSTRACT:
A system for transmitting data to a first circuit that transmits and receives data at a first rate from a second circuit that transmits data at second rate that is greater than the first rate. This invention includes an interface that transmits pause frames to the second circuit in response to an event in order to halt transmission from the second circuit to the first circuit. The second circuit then halts transmitting data until a message to resume transmission is received.
REFERENCES:
patent: 7369496 (2008-05-01), Wiggins et al.
patent: 2005/0182848 (2005-08-01), McNeil et al.
Malhotra et al., ‘Modeling the interaction of IEEE 802.3x hop-by-hop flow control and TCP end-to-end flow control’, Next Generation Internet 2005, Apr. 18-20, 2005, pp. 260-267.
IEEE Std 802.3, 1998 Edition, Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications, Annex 31B Mac Control Pause operation, pp. 1206-1215.
International Search Report sent Aug. 7, 2008 for PCT Application No. PCT/IB06/03250.
Written Opinion sent Aug. 7, 2008 for PCT Application No. PCT/IB06/03250.
Galimberti Gabriele Maria
Gianella Roberto
Portinari Marco
Sironi Paolo
Cisco Technology Inc.
Marcelo Melvin
Weaver Austin Villeneuve & Sampson LLP
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