Arrangement for minimizing data overflow by managing data...

Details Arrangement for minimizing data overflow by managing data... Arrangement for minimizing data overflow by managing data...

2005-08-18

2009-12-08

Ferris, Derrick W (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

Reexamination Certificate

active

07630307

ABSTRACT:
A method manages a communications link in which a first device (110) interfaces with a first channel extender (310) and in which a second device (120) interfaces with a second channel extender (320), and in which the first and second channel extenders (310, 320) communicate with each other through a communications medium (330). The method involves (FIG.7A) monitoring an occupancy (“b”) of a receive buffer (922+924) in the first channel extender (310) during transmission from the second channel extender (320) at a first transmission rate (R0); (FIG.7B) at a first time (Tlwm) when the occupancy of the receive buffer (922+924) exceeds a first threshold (B0+Bcr), immediately instructing (718) the second channel extender (320) to cease transmission to the first channel extender (310); (FIG.7C,732) monitoring for an overflow condition in the receive buffer (922+924); if (FIG.7D,758) the overflow condition is present, specifying (760) that a future transmission to the first channel extender (310) be at a second transmission rate (R′0) that is lower than the first transmission rate (R0); and instructing (FIG.7D,762) the second channel extender (320) to resume transmission to the first channel extender (310).

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