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List of terms
primary rate interface (PRI)
An integrated services digital network (ISDN) interface standard that is designated in North America as having a 23B+D channels. All
priority field
A
priority guaranteed queuing (PGQ)
A queuing mechanism that ensures that cells belonging to different priority classes sharing a link receive proper attention. The scheme enforces an absolute priority discipline unless the service to certain lower classes is excessively denied (that is, starved). PGQ raises the respective priority of lower class services until they are accorded at least minimal attention.
priority-tagged
A tagged frame whose IEE 802.1Q tag carrier priority information, but carries no VLAN identification information.
private branch exchange (PBX)
Telephone switching equipment used by a company or organization to provide
private network-to-network interface (PNNI)
An ATM routing and signaling protocol that permits dynamic routing and networking. Nortel Multiservice Switch networks support PNNI 1.0.
process identifier (PID)
PIDs identify a specific process associated with a specific data network address.
processor
The term processor is used in Nortel Multiservice Switch documentation to refer to a I80960 or PowerPC chip. A processor is a
processor card
A printed circuit board that provides the computation resources on Nortel Multiservice Switch devices. These cards usually support and manage external connections to communications facilities or networks. A processor card slides in as one unit into one of the slots of the shelf. There are two types of processor cards: the function processor (FP) card and the control processor (CP) card. A processor card is often referred to as a card when it is acting as the hardware platform of a logical processor.
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
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