Q-Logic 16-Feb Switch User Manual


 
59021-04 C Glossary-1
Glossary
Activity LED
A port LED that indicates when frames are
entering or leaving the port.
Alias
A collection of objects that can be zoned
together. An alias is not a zone, and can
not have a zone or another alias as a
member.
ALFairness
On an arbitrated loop, the switch is always
highest priority when arbitrating for the
right to transfer. To prevent other devices
from being locked out, the standard
provides for a fairness mode, which if
enabled requires an arbitrater to let all
other devices win arbitration before arb-ing
a second time. (True / False).
AL_PA
Arbitrated Loop Physical Address
Arbitrated Loop
A Fibre Channel topology where ports use
arbitration to establish a point-to-point
circuit.
Arbitrated Loop Physical Address (AL_PA)
A unique one-byte valid value assigned
during loop initialization to each NL_Port
on a Loop.
ARB_FF
When ARB_FF is enabled, it causes the
switch to send the ARB_FF primitive when
it is in monitoring mode, rather than idles.
The only reason to do this is since the
ARB_FF has less bit transitions than does
an idle, it produces less EMI. It has no
other effect. (True / False)
ASIC
Application Specific Integrated Circuit
BootP
A type of network server.
Buffer Credit
A measure of port buffer capacity equal to
one frame.
Class 2 Service
A service which multiplexes frames at
frame boundaries to or from one or more
N_Ports wit h acknowledgment provided.
Class 3 Service
A service which multiplexes frames at
frame boundaries to or from one or more
N_Ports without acknowledgment.
Domain ID
User defined name that identifies the
switch in the fabric.
E_Port
Expansion port. A switch port that
connects to another FC-SW-2 compliant
switch.