Glossary; Cascade-With-A-Loop Topology - Qlogic SANbox 5600 Series Installation Manual

Glossary

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 inter-
face.
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 used to
make defining zone set membership
easier. An alias is not a zone, and can not
have a zone or another alias as a member.
AL_PA
Arbitrated Loop Physical Address
59096-06 A
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. A
chip designed for a specific applications,
such as a transmission protocol or a
computer.
BootP
Boot Strap Protocol. 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.

Challenge-Handshake Authentication
Protocol
An authentication protocol by which a
device is challenged to verify its identity
before being allowed to log in to a switch.
Glossary-1