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GLOSSARY 5
MBps
Megabytes. (1024 x 1024 bytes) per second.
Multicast
A technique that allows copies of a single packet or
cell to be passed to a selected set of end stations.
Multimode
A large-core (62.5 micron) optical fiber through which
multiple signals will propagate.
NNI
Network-to-Network Interface. The interface between
two pieces of equipment on a public network.
Node
A device connected to the network media, usually
with an adapter card.
OC-3c
Optical Carrier level 3, concatenated. An optical
signal defined with a base rate of 155.52 Mbps.
Packet switching
Statistical, connectionless switching based on
information contained in variable-length packets.
PDU
Protocol Data Unit. A sequence of contiguous bits
delivered as a unit from the physical medium
sublayer. A valid PDU is at least 24 bits in length,
and contains address fields and a control field.
Point-to-point
Transmission of data between two nodes on a
network where one node is the sender and the other
node is the receiver.