Flexible scheduling mechanism for ATM switches

Details Flexible scheduling mechanism for ATM switches Flexible scheduling mechanism for ATM switches

1993-09-30

1995-02-14

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 60, 370 941, H04J 324

Patent

active

053901843

ABSTRACT:
A novel flexible scheduling mechanism which can be used in an ATM switch is disclosed. The new scheduling mechanism allows an ATM switch to handle ATM as well as STM traffic. Video, voice, and data traffic have different service requirements. It is desirable that an ATM switch also be able to handle STM traffic. The invention uses an STM scheduler and an ATM scheduler. A slot reservation technique is used in an STM scheduler in which certain slots can be reserved for STM traffic only. The STM scheduler has priority over the ATM scheduler so that STM traffic is handled with minimum delay to assure synchronous treatment of traffic with small cell delay variation.

REFERENCES:
patent: 4926416 (1990-05-01), Welk
patent: 5119370 (1992-06-01), Terry
patent: 5144619 (1993-09-01), Munter
patent: 5241536 (1993-08-01), Grimble et al.
patent: 5283782 (1994-02-01), Takase et al.
patent: 5287348 (1994-02-01), Schmidt et al.

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