Installing and Administering HP EISA FDDI/9000 and HP HSC FDDI/9000

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Glossary
Neighborhood Information Frames
(NIF) and Station Information
Frames (SIF) to pass an
announcement, a request, and the
response to a request.
SNMP (Simple Network
Management Protocol) A high
level standards-based protocol for
network management, usually used
in TCP/IP networks. An SNMP
monitor controls and measures the
activities of SNMP agents that are
embedded in nodes and network
devices on the network. SNMP relies
on Management Information Bases
(MIBs) embedded in the network
resources to monitor and control the
network’s topology.
spanning tree A method of
creating a loop-free logical
topology on an extended LAN.
Formation of a spanning tree
topology for transmission of
messages across bridges is based on
the industry standard spanning tree
algorithm defined in IEEE 802.1d.
station An addressable node on
the network capable of transmitting
and receiving data. In an FDDI ring,
the station can repeat data. A station
has at least one instance of SMT, at
least one instance of PHY and PMD,
and an optional MAC entity.
stuck beacon The condition where
a station is locked into sending
continuous beacon frames.
T
TCP/IP (Transmission Control
Protocol/Internet Protocol) A
set of communications protocols that
define how different types of
computers talk to each other. It is the
standard architecture for
internetworking multiple
organizations, and the common link
that ties the huge Internet together.
token A bit pattern consisting of a
unique symbol sequence that
circulates around the ring following
a data transmission. The token
grants stations the right to transmit.
token holding timer A timer that
controls the amount of time a station
may hold the token in order to
transmit asynchronous frames.