Data transfer apparatus and method using congestion recovery-typ

Details Data transfer apparatus and method using congestion recovery-typ Data transfer apparatus and method using congestion recovery-typ

1998-06-03

2000-09-26

Matar, Ahmad F.

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data transfer regulating

709200, 709224, 709226, 709232, 709233, 370229, 370232, 370235, 370230, G06F 1515

Patent

active

061253979

ABSTRACT:
A data transfer apparatus and method uses recovery-type congestion control and avoidance-type congestion control. A bandwidth determination unit determines a requested bandwidth for a congestion avoidance-type data transfer in accordance with control information communicated between applications prior to the congestion avoidance-type data transfer. A bandwidth estimation unit estimates a bandwidth having been used by a congestion recovery-type data transfer in accordance with the control information communicated between applications prior to the congestion recovery-type data transfer. A management information memory stores information data of all the congestion avoidance-type data transfers and congestion recovery-type data transfers that use the bandwidth at a particular moment (i.e., simultaneously). A bandwidth allocation unit determines whether a newly requested congestion avoidance-type data transfer can be performed in accordance with an unused bandwidth and a bandwidth requested by the new data transfer, and allocates a certain amount of bandwidth to the new congestion avoidance-type data transfer. A data transfer instruction unit instructs an application to perform new data transfer.

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