Systems and methods for handling frame discard indication...

Details Systems and methods for handling frame discard indication... Systems and methods for handling frame discard indication...

2002-09-03

2009-08-04

Vu, Huy D. (Department: 2416)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S239000, C370S240000, C370S473000, C370S310100, C370S395600

Reexamination Certificate

active

07570652

ABSTRACT:
A data communication network provides techniques for handling frame discard of non-delineable flows. When a data flow is established, it is evaluated to determine whether a frame delimiter value is required and, if so, whether it is present. If the frame delimiter is required and missing, then the flow is declared non-delineable. If, subsequently, a congestion threshold is reached for this data flow, cells are discarded until a) a frame delimiter value is received, b) congestion drops below the threshold or c) a predetermined number of cells are discarded. These techniques provide frame discard handling mechanisms that alleviate the need for NOC personnel to intervene in problems caused by non-delineable frame discard flows.

REFERENCES:
patent: 5822540 (1998-10-01), Caldara et al.
patent: 6282171 (2001-08-01), Adams et al.
patent: 6370112 (2002-04-01), Voelker
patent: 6487198 (2002-11-01), Pierson, Jr.
patent: 6633569 (2003-10-01), Hemmady

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