Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Patent
1997-01-29
1998-12-22
Olms, Douglas W.
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
370236, 370253, 370395, 370410, 370413, 370905, H04J 314
Patent
active
058526021
ABSTRACT:
In a credit control method and system, an initial credit value is sent from a receiving-side to a sending-side prior to transferring a packet. Transfer of a packet is started on the sending-side when this credit value is received. On the receiving-side, a new credit value is calculated when the packet is received, and the same number of packets as the number indicated by the calculated new credit value are received and processed. A new credit value is sent to the sending-side whenever receiving buffers whose number equals the preceding new credit value are emptied. On the sending-side, the sum of the new credit value and the initial credit value, whenever the new credit value is received, is stored as a credit value indicating the number of successively transmittable packets. The stored credit value is decremented by one on the sending-side whenever a packet is sent, and packets are continuously transferred until the credit value becomes "0" or there is no more packet to be sent. An integral new credit value Cn calculated based on a condition: Ta+Tp.times.(Cn-1)<Tp.times.Ci where Ta is a time from transmission of the initial credit value to reception of the first packet on the receiving-side, Tp is a time required to send one fixed-length packet, and Ci is the initial credit value is Ci.
REFERENCES:
patent: 4527267 (1985-07-01), Cohen
patent: 5063562 (1991-11-01), Barzilai et al.
patent: 5119372 (1992-06-01), Verbeek
patent: 5280470 (1994-01-01), Buhrke et al.
patent: 5313454 (1994-05-01), Bustini et al.
patent: 5339332 (1994-08-01), Kammerl
patent: 5432824 (1995-07-01), Zheng et al.
patent: 5442624 (1995-08-01), Bonomi et al.
patent: 5457687 (1995-10-01), Newman
patent: 5493566 (1996-02-01), Ljungberg et al.
patent: 5572523 (1996-11-01), Katsube et al.
D. Hunt et al. "Credit-Based FCVC Proposal for ATM traffic Management," ATM Forum Technical Committee 94-0168R1, May, 1994.
ANSI X3T11., "High-Performance Parallel Interface-Mapping to Asynchronous Transfer Mode", American National Standard for Information Systems, Jun. 1994, pp. i-ii, 1-11.
NEC Corporation
Olms Douglas W.
Rao Seema S.
LandOfFree
Credit control method and system for ATM communication apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Credit control method and system for ATM communication apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Credit control method and system for ATM communication apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2053228