Multiplex communications – Wide area network – Packet switching
Patent
1992-02-12
1994-01-25
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
H04L 1224, H04L 1256
Patent
active
052822036
ABSTRACT:
There is provided a packet-rate control method for a packet network, in which a declaration of parameters indicating the rate of fixed-length packets is so made to a call control system by a subscriber terminal device prior to communication as to be associated with a logical channel number. The rate of packets inputted to the network is so measured as to be associated with a logical channel number. While the degree of violation is low, packets transmitted in violation of user-declaring parameters are provided with a violation mark and taken in the network. If the degree of violation is high, the packets transmitted in violation of user-declaring parameters are discarded on the input side of the network. When there appears a possibility of congestion in the network, the marked packets are discarded. As a result, it is possible to prevent violation packets and marked packets from affecting the quality of service using normal packets.
REFERENCES:
patent: 4993024 (1991-02-01), Quinquis et al.
patent: 5007043 (1991-04-01), van den Dool et al.
patent: 5132961 (1992-07-01), Thiebaut et al.
patent: 5140588 (1992-08-01), Danner
C. Cooper et al, "Toward a Broadband Congestion Control Strategy", IEEE Network Mag., vol. 4, No. 3, pp. 18-23.
Chin Wellington
Hitachi , Ltd.
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