Data stream shaper

Details Data stream shaper Data stream shaper

1997-12-10

2000-08-01

Vu, Huy D.

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

370395, H04L 1226

Patent

active

060977019

ABSTRACT:
A shaper (1) in a stream of data packets provides for compliance with the agreements about the packet traffic of each virtual connection. It contains means (11) for the intermediate storage and read-out of data packets and for extracting the packet clock, furthermore a control (12) which reads the packets of the different connections into the data stream at the right time. The selection of the data packet takes place on the basis of a rank which is established for each data packet located at the front of the virtual waiting line of the individual connection. With each packet clock the rank is incremented in accordance with the agreed bandwidth for this connection; thus, for each clock a new calculation for the highest two connections for which a data packet advances again to the head of the virtual waiting line, is sufficient. Two processing units (21, 24) are provided. Reference magnitudes (Bk) of individual connections are calculated in a single first processing unit (21); in a second processing unit (24) which is available once for each connection, they are also weighted, updated and provided with the priority (PRIO).

REFERENCES:
patent: 5313579 (1994-05-01), Chao
patent: 5448567 (1995-09-01), Dighe et al.
patent: 5577035 (1996-11-01), Hayter et al.
patent: 5719865 (1998-02-01), Sata
patent: 5745477 (1998-04-01), Zheng et al.
patent: 5818815 (1998-10-01), Carpentier et al.
patent: 5831971 (1998-11-01), Bonomi et al.

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