Data transfer server with time slots scheduling base on transfer

Details Data transfer server with time slots scheduling base on transfer Data transfer server with time slots scheduling base on transfer

1996-11-15

1999-03-02

Dinh, Dung C.

Multiplex communications

Wide area network

Packet switching

370458, G06F 1516

Patent

active

058782281

ABSTRACT:
This invention relates to a method and protocol to enable a simple, reliable and highly scaleable data transfer facility in a digital data network. A connectionless, unacknowledged data transfer protocol minimizes resource utilization at a data server and is combined with source rate control to reduce congestion in the intervening network. The data transfer server implementing the protocol, operates by defining a circular ordering of individual scheduling timeslots having zero or more download records. The server selects in sequence, at a predetermined rate, the individual scheduling timeslots, and services, responsive to the selected timeslot having at least one download record, each record therein according to parameters in that record. Servicing includes (I) sending, to the destination address, a download message which includes a block of data extracted from the identified data, based on the remaining data information; (ii) updating the remaining data information to reflect the block of data that was sent; and (iii) resheduling, based on the transfer rate and the predetermined rate, the download record into an appropriate one of the scheduling timeslots.

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