Control architecture for a homogeneous routing structure

Details Control architecture for a homogeneous routing structure Control architecture for a homogeneous routing structure

1997-10-01

2000-10-24

Ton, Dang

Multiplex communications

Pathfinding or routing

H04Q 1100

Patent

active

061377902

ABSTRACT:
A system for providing segmented control of a single, homogeneous routing structure, such as a switch fabric, includes application control elements that are each responsive to embedded signal status information for each of the input signals to the switch fabric. Within each of the application control elements, a configurable arrangement of selectors and control logic is used to provide domain segmented control of each of the separate switching functions for a particular application. Each application control element performs an application specific address resolution function to resolve a single address of one of the input signals based on the embedded signal status of each of the input signals. This single address is provided to the switch fabric so that the corresponding input signal can be selected at the switch fabric output. Because embedded signal status is provided locally at each selection point within the application control element, the control functions for each of the separate switching functions are decoupled, and, as a result, each of the separate switching functions can be independently controlled as a separate domain within the application control element. The single, homogeneous switch fabric simultaneously supports multiple applications in parallel because each of the application control elements is used to control a separate output from the switch fabric. Because of the one for one association between application control elements and switch fabric outputs, the switch fabric is effectively "channelized" whereby each channel of the switch fabric supports a separate application.

REFERENCES:
patent: 4847877 (1989-07-01), Besseyre
patent: 5008882 (1991-04-01), Peterson et al.
patent: 5465256 (1995-11-01), Fowler
patent: 5636203 (1997-06-01), Shah
patent: 5838684 (1998-11-01), Wicki et al.

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