Panasonic 1200N manual Cbr, Ccitt, Ccr, Ccs, Cdf, Cd-Rom, Cdv

C Glossary

CBR

Constant Bit Rate: An ATM service category which supports a constant or guaranteed rate to transport services such as video or voice as well as circuit emulation which requires rigorous timing control and performance parameters.

CCITT

Comite Consutarif International Telegraphique at Telephonique: The Consultive Committee on International Telegraph and Telephony.The CCIT is known as the ITU-T (International Telecommunications Union Telecommunications Services Sector), based in Geneva Switzerland.The scope of its work is now much broader than just telegraphy and telephony.It now also includes telematics, data, new services, systems and networks (like ISDN).

CCR

Current Cell Rate: The Current Cell Rate is an RM-cell field set by the source to its current ACR when it generates a forward RM-cell. This field may be used to facilitate the calculation of ER, and may not be changed by network elements. CCR is formatted as a rate.

CCS

Common Channel Signaling: A form signaling in which a group of circuits share a signaling channel. Refer to SS7.

CDF

Cutoff Decrease Factor: CDF controls the decrease in ACR (Allowed Cell Rate) associated with CRM.

CD-ROM

Compact Disk-Read Only Memory: Used by a computer to store large amounts of data. Commonly used for interactive video games.

CDV

Cell Delay Variation: CDV is a component of cell transfer delay, induced by buffering and cell scheduling. Peak-to-peak CDV is a QoS delay parameter associated with CBR and VBR services. The peak-to- peak CDV is the ((1-a) quantile of the CTD) minus the fixed CTD that could be experienced by any delivered cell on a connection during the entire connection holding time. The parameter "a" is the probability of a cell arriving late. See CDVT.

B-14	Centillion 1200N ATM Switch User Manual
	NTP 297-8103-903