director 2/64 service manual

director 2/64 service manual Glossary–7
Glossary
Ethernet
A widely implemented local area network (LAN) protocol that uses a bus or star topology and
serves as the basis for the IEEE 802.3 standard, which specifies the physical and software
layers. Baseband LAN allows multiple station access to the transmission medium at will
without prior coordination and which avoids or resolves contention.
Ethernet hub
A device used to LAN-connect the HAFM server and managed directors.
event code
Error code that provides the operator with information concerning events that indicate
degraded operation or failure of a director.
event log
Record of significant events that have occurred at the director, such as FRU failures, degraded
operation, and port problems.
expansion port (E_Port)
Physical interface on a Fibre Channel switch within a fabric, that attaches to an expansion port
(E_Port) on another Fibre Channel switch to form a multi-switch fabric. See also segmented
E_Port.
fabric
Fibre Channel entity that interconnects node ports (N_Ports) and is capable of routing
(switching) Fibre Channel frames using the destination ID information in the Fibre Channel
frame header accompanying the frames.
fabric element
An active switch, director, or node in a Fibre Channel switched fabric.
fabric port (F_Port)
Physical interface on the director that connects to a node port (N_Port) through a
point-to-point full duplex connection.
failover
Automatic and nondisruptive transition of functions from an active FRU that has failed to a
backup FRU.
FCC-IOC
See Fibre Channel input/output controller.