Method for providing a fair-rate allocation for available bit ra

Details Method for providing a fair-rate allocation for available bit ra Method for providing a fair-rate allocation for available bit ra

1997-04-16

2000-04-18

Kizou, Hassan

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

370235, H04L 1226, H04L 1256

Patent

active

060523611

ABSTRACT:
A method for allocating a fair bit rate for an ABR service. Forward and backward RM cells traversing a link 1 are received at an ATM switch. Both the forward and backward RM cells are associated with a session, with the forward RM cells being transmitted from a source to a destination and the backward RM cells being transmitted from the destination to the source. An advertised rate .gamma..sub.l for link 1 is updated when a backward RM cell associated the session is received based on a change in a bottleneck bandwidth .DELTA..lambda. of the session and a change in a bottleneck status .DELTA..beta. of the session. The explicit rate .lambda..sup.ER contained in the backward RM cell is rewritten as a minimum of the advertised rate .gamma..sub.l and the explicit rate .lambda..sup.ER. The backward RM cell is then transmitted to the source of the RM cell.

REFERENCES:
patent: 5675576 (1997-10-01), Kalampoukas et al.
patent: 5701292 (1997-12-01), Chiussi et al.
patent: 5737313 (1998-04-01), Kalakov et al.
patent: 5777984 (1998-07-01), Gun et al.
patent: 5812527 (1998-09-01), Kline et al.
patent: 5889761 (1999-03-01), Yamato

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