Multiplex communications – Data flow congestion prevention or control
Patent
1997-12-08
2000-11-07
Pham, Chi H.
Multiplex communications
Data flow congestion prevention or control
370232, H04L 1228
Patent
active
06144636&
ABSTRACT:
A packet switch for setting a connection between a transmission source of a packet and a reception destination thereof so as to perform communication. The invention includes a packet buffer which includes at least one input port and a plurality of output ports. An input packet from the input port is delivered to at least one output port in accordance with address information of the input packet and connection information having been set in the packet switch at the time of setting the connection between the transmission source and the reception destination. A bandwidth management packet for giving notice of a congested state of the packet switch is transferred on the connection. The invention further includes a register which holds threshold value information for indicating an amount of use of the packet buffer that causes congestion, a counter which provides a count representative of a current amount of use of the packet buffer, a comparator which compares the count from the counter and the threshold value information from the register and outputs a result of the comparison, and a congestion decision
otification circuit which writes congestion notification information into the bandwidth management packet based on a result of the comparison by the comparator.
REFERENCES:
patent: 5090011 (1992-02-01), Fukuta et al.
patent: 5555823 (1996-08-01), Irie
patent: 5699345 (1997-12-01), Watanuki et al.
patent: 5764641 (1998-06-01), Lin
patent: 5822540 (1998-10-01), Caldera
patent: 5838677 (1998-11-01), Kozaki et al.
patent: 5914936 (1999-06-01), Hatono et al.
patent: 5936958 (1999-08-01), Soumiya et al.
The ATM Forum Technical Committee, Traffic Management Specification v4.0, af-tm-0056.000 Letter Ballot, Apr., 1996.
Aimoto Takeshi
Yazaki Takeki
Hitachi , Ltd.
Pham Brenda H.
Pham Chi H.
LandOfFree
Packet switch and congestion notification method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Packet switch and congestion notification method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Packet switch and congestion notification method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1648381