User's Manual

59042-06 A Glossary-1
Glossary
Access Control List Zone
Access Control List zoning divides the
fabric for purposes of controlling discovery
and inbound traffic.
Active Zone Set
The zone set that defines the current
zoning for the fabric.
Active Firmware
The firmware image on the switch that is in
use.
Activity LED
A port LED that indicates when frames are
entering or leaving the port.
Administrative State
State that determines the operating state
of the port, I/O blade, or switch. The
configured administrative state is stored in
the switch configuration. The configured
administrative state can be temporarily
overridden using the command line
interface.
Alarm
A message generated by the switch that
specifically requests attention. Alarms are
generated by several switch processes.
Some alarms can be configured.
Alias
A named set of ports or devices. An alias
is not a zone, and can not have a zone or
another alias as a member.
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 value assigned during
loop initialization to each NL_Port on a
loop.
ASIC
Application Specific Integrated Circuit
Auto Save
Zoning parameter that determines whether
changes to the active zone set that a
switch receives from other switches in the
fabric will be saved to permanent memory
on that switch.
BootP
A type of network server.
Buffer Credit
A measure of port buffer capacity equal to
one frame.
Cascade Topology
A fabric in which the switches are
connected in series. If you connect the last
switch back to the first switch, you create a
cascade-with-a-loop topology.
Class 2 Service
A service which multiplexes frames at
frame boundaries to or from one or more
N_Ports wit h acknowledgment provided.