Technical data

Brocade SilkWorm 4100 Hardware Reference Manual Glossary-23
Publication Number: 53-0000563-02
port log dump A view of what happens on a switch, from the switch's point of view. The portlogdump command is
used to read the port log.
port name A user-defined alphanumeric name for a port.
port swapping Port swapping is the ability to redirect a failed port to another port. This feature is available in Fabric
OS v4.1.0 and higher.
port_name The unique identifier assigned to a Fibre Channel port. Communicated during login and port discovery.
POST Power-on self-test. A series of tests run by a switch after it is turned on.
PPP Point-to-Point Protocol.
primary FCS
switch
Relates to the Brocade Secure Fabric OS feature. The primary fabric configuration server switch
actively manages security and configurations for all switches in the fabric. See also backbone fabric,
FCS switch.
primitive
sequence
An ordered set that is transmitted repeatedly and continuously. Primitive sequences are transmitted to
indicate specific conditions within or conditions encountered by the receiver logic of an FC_Port. See
OLS, NOS.
primitive
signals
An ordered set that indicates actions or events and requires just one occurrence to trigger a response.
IDLE and R_RDY are used in all three topologies: ARB, OPN, and CLS. MRK is used in arbitrated
loop.
principal
switch
The first switch to boot up in a fabric. Ensures unique domain IDs among roles.
private device A device that supports arbitrated-loop protocol and can interpret 8-bit addresses but cannot log in to the
fabric.
private key The secret half of a key pair. See also key, key pair.
private loop An arbitrated loop that does not include a participating FL_Port.
private loop
device
A device that supports a loop and can understand 8-bit addresses but does not log in to the fabric.
private
NL_Port
An NL_Port that communicates only with other private NL_Ports in the same loop and does not log in
to the fabric.
protocol A defined method and set of standards for communication. Determines the type of error-checking, the
data-compression method, how sending devices indicate an end of message, and how receiving devices
indicate receipt of a message.
pstate Port State Machine.
PSU Power supply unit.
public device A device that supports arbitrated-loop protocol, can interpret 8-bit addresses, and can log in to the
fabric.