PGlossary
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 s egmented
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.