Packet switching device and cell transfer control method

Details Packet switching device and cell transfer control method Packet switching device and cell transfer control method

2005-11-22

2005-11-22

Pham, Chi (Department: 2667)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S395100

Reexamination Certificate

active

06967924

ABSTRACT:
For setting up a connection belonging to a particular traffic class which does not make bandwidth reservation, information indicative of a priority related to cell discard declared by a source unit is stored in either of nodes in an ATM network corresponding to an identifier of the connection, such that the node selectively performs discard processing on cells belonging to the particular traffic class, when congestion occurs on the connection, in conformity to a predetermined discard condition determined by a relationship between the status of the congestion and the priority. In this way, traffics can be protected for connections having higher priorities even if they do not make bandwidth reservation.

REFERENCES:
patent: 5090011 (1992-02-01), Fukuta et al.
patent: 5267232 (1993-11-01), Katsube et al.
patent: 5555265 (1996-09-01), Kakuma et al.
patent: 5583858 (1996-12-01), Hanaoka
patent: 5764641 (1998-06-01), Lin

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