HP Fibre Channel Fabric Migration Guide

Glossary
IODC
Glossary22
I
IODC (Input/Output Dependent Code) -
firmware that implements a simplified
driver for an adapter card. It is analogous to
card BIOS in a PC. IODC is included in the
PDC (Processor Dependent Code). See also
See also PDC..
L
LIP (Loop Initialization Primitive) used to
initiate a procedure on the loop. This
initialization state usually causes activity on
the loop to suspend briefly. It can be caused
by new devices being added or moved on the
loop, arbitrated loop address assignment,
recovery from loop failure, or resetting a
node.
N
N_Port - a node port (or device port) used to
route information to or from other nodes or
to devices. The N_Port is the access point to
a Fibre Channel adapter.
NL_Port - an N_Port that is attached to the
Fabric in a loop configuration.
P
PDC (Processor Dependent Code) - firmware
that hides machine differences and
integrates and calls IODC to allow the
system to boot. It is analogous to system
BIOS in a PC. See also See also IODC..
Port - the third field of the 3-byte address
assigned to an attached N_Port in a Fabric
configuration. The port is generally
associated with the Hard Physical Address
(HPA) of a Fibre Channel target device.
Private Loop - an arbitrated loop that has
no attached switch port. Private loop devices
can only communicate with other devices on
the same loop (except in translative mode).
See also See also Translative Mode and
Arbitrated Loop..
Public Loop - a topology in which an
arbitrated loop is connected to a switch
through an FL_Port which allows hosts or
devices on the loop to communicate with
hosts or devices attached to other FL_Ports.
Q
QL_Port - a Fabric port in a QuickLoop
configuration that routes information from a
QuickLoop switch to a target device
connected to an NL_Port.
QuickLoop Configuration - an emulated
private loop configuration that allows
private hosts on Fabric-attached loops to
access private target devices across the
switch. This configuration can consist of
multiple private Arbitrated Loops that are
interconnected and may be isolated by the
switch (this is a feature of the Brocade
switches).
T
TMWQL Translative Mode with QuickLoop