Method and apparatus for enabling LCAS-like feature through embedded software

A technique controls the capacity of a virtual concatenation group (VCG) carried on a SONET path of a data network. Efficient control of VCG capacity is provided by emulating aspects of a Link Capacity Adjustment Scheme (LCAS) protocol in software. A hardware poller facility is employed to manage th...

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Bibliographische Detailangaben
Hauptverfasser:	ERVIN JIM P, CHISHOLM DAVID E, CARRIKER, JR. CHARLES A, WEN JI, RAMPAL SANJEEV D
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MULTIPLEX COMMUNICATION PHYSICS SIGNALLING TESTING TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS
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Beschreibung
Zusammenfassung:	A technique controls the capacity of a virtual concatenation group (VCG) carried on a SONET path of a data network. Efficient control of VCG capacity is provided by emulating aspects of a Link Capacity Adjustment Scheme (LCAS) protocol in software. A hardware poller facility is employed to manage the status and state of the VCG, as well as members belonging to the VCG. The hardware poller contains one or more VCG state machines (VSMs) and member state machines (MSMs) configured to maintain the status and states of the VCGs and their members.