Statistical packet discard

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Patent

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Details

370230, 370235, 714 48, 714799, H04L 1228, H04L 1256

Patent

active

060440791

ABSTRACT:
The present invention is an apparatus that manages Packet-Discard at a switch in an ATM network. The apparatus includes a table having a number of table addresses (or indexes). Each table address stores a record for incoming data cells of a frame. The records indicate whether data cells of the frame are be discarded. The number of possible cell identifiers is greater than the number of table addresses. The apparatus also includes a processor unit which receives a data cell having a cell identifier. The processor unit determines a table key, based on the cell identifier such that the table key is within the range of the table addresses. The processor unit then searches a record in the table associated with the table key to determine whether the data cell is to be discarded.

REFERENCES:
patent: 5444706 (1995-08-01), Osaki
patent: 5459743 (1995-10-01), Fukuda et al.
patent: 5517497 (1996-05-01), Le Boudec et al.
patent: 5521917 (1996-05-01), Watanabe et al.
patent: 5530806 (1996-06-01), Condon et al.
patent: 5689499 (1997-11-01), Hullett et al.

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