Feedback control apparatus and cell scheduling apparatus for use

Details Feedback control apparatus and cell scheduling apparatus for use Feedback control apparatus and cell scheduling apparatus for use

1997-03-31

1999-08-17

Pham, Chi H.

Multiplex communications

Diagnostic testing

Loopback

370235, 370253, 370412, H04J 314

Patent

active

059403756

ABSTRACT:
A feedback control apparatus whereby the traditional single control loop for available bit rate (ABR) connections is segmented into a plurality of loops that are handled in a mutually related manner for better responsiveness of ABR connection feedback control. Three control loops are illustratively formed: a closed upward feedback control loop between a source end system and a virtual destination-link unit (VD-L) for an ABR connection, a downward control loop between a destination end system and a virtual source-link unit (VS-L) for the ABR connection, and an intra-switch feedback control loop between an upstream virtual source-internal unit (VS-I) and a downstream virtual destination-internal unit (VD-I) for the ABR connection.

REFERENCES:
patent: 5563875 (1996-10-01), Hefel et al.
patent: 5566171 (1996-10-01), Levinson
patent: 5659540 (1997-08-01), Chen et al.
patent: 5740159 (1998-04-01), Ahmad et al.
The ATM Forum Technical Committee Traffic Management Specification Version 4.0; Apr. 1996; pp. 38-52.

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