user manual

59229-05 A Glossary-3
QLogic 9000 Series Stackable Chassis Switch
Installation Guide
Fault Tolerant
A licensed feature that supports automatic
and manual failover of switch manage-
ment functions from the primary CPU
blade to the secondary CPU blade.
FDMI
See Fabric Device Management Interface.
Flash Memory
Memory on the switch that contains the
chassis control firmware.
Frame
Data unit consisting of a start-of-frame
(SOF) delimiter, header, data payload,
CRC, and an end-of-frame (EOF) delim-
iter.
FRU
Field Replaceable Unit
Group
A list of device worldwide names that are
authorized to attach to a switch. There are
three group types: one for other switches
(ISL), another for devices (port), and a
third for devices issuing management
server commands (MS).
Heartbeat LED
A chassis LED that indicates the status of
the internal switch processor and the
results of the Power-On Self-Test.
HyperStack
A licensed feature that supports the
connection of two QLogic 9000 Series
switches through the multiple 10-Gbps link
Inter-Chassis Connectors (ICC).
Inactive Firmware
The firmware image on the switch that is
not in use.
Inband Management
The ability to manage a switch through
another switch over an inter-switch link.
Initiator
The device that initiates a data exchange
with a target device.
In-Order-Delivery
A feature that requires that frames be
received in the same order in which they
were sent.
Inter-Switch Link
The connection between two switches
using E_Ports.
I/O Blade
Fibre Channel component of the
QLogic 9000 Series switch.
IP
Internet Protocol
License Key
A code associated with a
separately-purchased feature that
activates that feature on the switch.
LIP
Loop Initialization Primitive sequence
Maintenance Button
Momentary button on the switch used to
place the switch in maintenance mode.
Maintenance Mode
Maintenance mode sets the IP address to
10.0.0.1 and provides access to the switch
for maintenance purposes.
Management Information Base
A set of guidelines and definitions for
SNMP functions.