Flexible scheduling mechanism for ATM switches
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United States of America Patent
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-
Feb 14, 1995
Grant Date -
N/A
app pub date -
Sep 30, 1993
filing date -
Sep 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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