3Com corebuilder 3500 Implementation Manual page 98

98 C 6: F D
HAPTER IBER
D I
ISTRIBUTED ATA NTERFACE
SMT Operation
The operation of SMT falls into three broad categories:
Physical Connection Management (PCM) — Establishes and
maintains point-to-point physical links between neighboring ports. It
provides all the signaling necessary to initialize connections, withhold
marginal connections, and support maintenance.
Configuration Management (CFM) — Interconnects PHYs and
MACs on paths to achieve proper station configuration and network
topology.
Ring Management (RMT) — Manages a MAC's operation in an FDDI
ring. RMT detects stations that are stuck in the beacon process and
initiates the trace function. RMT locates duplicate addresses that
might prevent the ring from operating.
FDDI MIB
The FDDI Management Information Base (MIB) defines the collection of
information that is available to network management about an FDDI
station. The MIB uses an object-oriented approach similar to that used in
OSI management standards.
FDDI-managed objects include SMT (that is, the SMT of the station),
MACs, paths, and ports. Each of these objects has a collection of
attributes such as statistics, error counters, configuration information,
event notifications, and actions.
You can access a station's MIB locally through a local management
interface or remotely through a management protocol such as Parameter
Management Frame (PMF) or Simple Network Management Protocol
(SNMP). The SMT standard specifies the meaning and encoding of each
MIB attribute.
Frame-based Protocols
SMT provides a number of frame-based services that higher level
management functions use to manage stations on the network and to
gather information about them. Frame-based protocols:
Gather network statistics
Detect, isolate, and resolve faults in the network
Tune FDDI configuration and operational parameters to meet
application and connectivity requirements
(FDDI)