ATM queuing and scheduling apparatus

Details ATM queuing and scheduling apparatus ATM queuing and scheduling apparatus

1995-09-29

1998-03-31

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370392, 370395, 370414, 370418, H04L 1254

Patent

active

057346500

ABSTRACT:
An apparatus for queuing and scheduling ATM cells across an ATM switch comprises sustainable cell rate calendar connected in series with a peak cell rate calendar wherein cells are scheduled independently in each. The sustainable cell rate calendar guarantees the maximum ATM cell delay is not exceeded. The ATM cells are not placed on the peak cell rate calendar unless the peak cell rate threshold might be exceeded. In this case the cell is scheduled on the peak cell rate calendar and it is this that determines when the cell is sent. In this way, it is possible to guarantee absolute minimum and maximum cell rates of a connection.

REFERENCES:
patent: 5400336 (1995-03-01), Boyer
patent: 5497375 (1996-03-01), Hluchyj et al.
patent: 5570360 (1996-10-01), Klausmeier et al.
patent: 5602830 (1997-02-01), Fichou et al.
Verma DC et al. "First International Workshop on Network and Operating System Support", 1990 Int. Comp Sci Inst. Guaranteeing Delay Jitter Bounds in Packet-Switching Networks.

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