- Hewlett-Packard SAN Switch Installation Guide

non-participating
mode
A mod e in which an L_Port in a loop is inactive and cannot
arbitrate or send frames, but can retransmit any received
transmissions. This mode is entered if there are more than 127
devices in a loop and an AL_PA cannot be acquired. See
also L_Port,???.
Nx_Port AnodeportthatcanoperateasanN_PortorNL_Port.
packet A set of information transmitted across a network.
participating
mode
A mode in which an L_Por t in a loop has a valid AL_PA and can
arbitrate, send frames, and retransmit received transmissions.
path selection The selection of a transmission path throug h the fabric. HP
switches use the FSPF protocol for transmission path selection.
phantom address An AL_PA value assigned to a device that is not physically
in the loop. Also known as phantom AL_PA. See also ???,
phantom device.
phantom device A device that is not physically in an arbitrated loop but is
logically included through the use of a phantom address. See
also phantom address.
PLOGI Port login. The port-to-port login process by whic h initiators
establish sessions with targets. See also FLOGI.
point-to-point An FC topology that employs direct links between each pair of
communicating entities. See also buffer-to-buffer flow control.
port cage The metal casing extending out of the FC port on the switch
and into which a GBIC or SFP transceiver can be inserted.
Port_Name The unique identifier assigned to an FC port. It is communicated
during login and port discovery.
POST Power-on self-test. A series of diagnostic tests run by a switch
after it is powered on.
primary FCS
switch
Primary Fabric Configuration Server switch. The switch that
actively manages the configuration and securit y parameters
for all switches in the fabric.
private loop An arbitrated loop that does not include a participating FL_Port.
private NL_Port An NL_Port that communicates only with other private NL_Ports
inthesameloopanddoesnotlogintothefabric.
public device A device that supports arbitrated loop protocol, can interpret
8-bit addresses, and can log in to the fabric. See also
arbitrated loop.
152
Glossary