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P Glossary
B-54 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
OXB
Output eXpandable Buffer
P
Packet
A device for generating an analog test signal or an electronic circuit that creates a
single frequency signal.
Packet Switch
A device that routes and forwards structured messages (packets).
Packet Switching
A data transmission method used in a network where user information is segmented
and routed in discreet data envelopes called packets, each with its own appended
control information for routing, sequencing, and error checking. Packet switched
networks typically employ a full three-layer protocol stack (physical link, data link,
network) in every node.
PAD
Packet Assembler and Disassembler: A PAD assembles packets of asynchronous
data and emits these buffers in a burst to a packet switch network. The PAD also
disassembles packets from the network and emits the data to the non-packet device.
Parent Node
The logical group node that represents the containing peer group of a specific node
at the next higher level of the hierarchy.
Parent Peer Group
The parent peer group of a peer group is the one containing the logical group node
representing that peer group. The parent peer group of a node is the one containing
the parent node of that node.
Path Constraint
A bound on the combined value of a topology metric along a path for a specific
connection.