ATM cell transmit priority allocator

Details ATM cell transmit priority allocator ATM cell transmit priority allocator

1997-06-23

1999-12-07

Horabik, Michael

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370412, 370415, 370 601, H04L 1228, H04Q 1104

Patent

active

059995335

ABSTRACT:
A method of controlling the supply of cells into an asynchronous network, comprises the steps of storing incoming bytes from multiple channels in respective channel buffers, creating in memory a timing event wheel partitioned into a plurality of sectors, of which one is active at any time, and placing cell pointers in the sectors. The cell pointers identify channel buffers and are distributed around the wheel in accordance with a desired transmission schedule. The wheel is stepwise advanced at a predetermined rate, and the cell pointers in the active sector are scanned at each advance of the wheel to identify the corresponding channel buffers. The bytes from the identified channel buffers are assembled into cells, which are forwarded for transmission over the asynchronous network. These are then multiplexed with VBR cells from another source.

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Singh S. "Round-Robin with Credits: An Improved Scheduling Strategy for Rate-Allocation in High-Speed Packet-Switching" Proceedings of the Global Telecommunications Conference (Globecom), Sand Francisco, Nov. 28-Dec. 2, 1994, pp. 334-338, XP000488568 Institute of Electrical and Electronics Engineeres p. 335, left-hand folumn, line 5--p.336, Left-hand column, line 19.

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