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SN0051103-00 A Glossary-3
iSR6250 Intelligent Storage Router
Installation Guide
A
FC-IP mode
Data transportation mode in which the
iSR6250 transports FC frames over a
TCP/IP connection using the FCIP (Fibre
Channel over IP) protocol to connect two
iSR6250 routers. In FC-IP mode, a port
pair (one FC port and an IP port on the
same router) on local iSR6250 and
another port pair on a remote router form a
FCIP route.
FCIP (Fibre Channel over IP)
Protocol that enables transmission of Fibre
Channel information by tunneling data on
a SAN over IP networks. An alternative to
iSCSI. Also known as Fibre Channel
tunneling.
FCoE
Fibre Channel over Ethernet. A new
technology defined by the T11 standards
body that allows traditional FC storage
networking traffic to travel over an
Ethernet link by encapsulating FC frames
inside Layer 2 Ethernet frames. For more
information, visit www.fcoe.com
.
FL_Port
Fabric loop port. In an FC, the fabric switch
is capable of FC arbitrated loop operations
and is connected to one or more NL_Ports
by an FC Arbitrated Loop. An FL_Port
becomes a shared entry point for public
NL_Port devices to an FC fabric. FL_Ports
are intermediate ports in virtual
point-to-point links between end ports that
do not reside on the same loop, for
example NL_Port to FL_Port to F_Port to
N_Port through a single FC fabric switch.
flash
Non-volatile memory where the boot code
is saved. At times, flash and boot code are
used interchangeably.
flash BIOS
A QLA2xxx adapter's flash programmable
read-only memory (PROM) contains the
code that allows booting from the adapter
at startup.
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. Component that
can be replaced in the field upon failure.
G_Port
Generic port. A port that can operate as
either an E_Port or an F_Port. A G_Port
can determine operating mode at switch
port initialization, F_Port when an N_Port
attachment is determined, E_Port when an
E_Port attachment is determined. See
E_Port, F_Port, FL_Port, L_Port, N_Port,
NL_Port
HA
High availability. HA refers to a system or
device that operates continuously for a
long length of time.
HBA
Host bus adapter. See adapter.
heartbeat LED
A chassis LED that indicates the router
status.
hot replaceable
Also known as hot swappable, this means
you can add new devices or remove
existing ones when the system is running.