FW 05.01.00 and SW 07.01.00 HP StorageWorks Directors and Edge Switches Glossary (AA-RU5JA-TE, June 2003)

Glossary
19Directors and Edge Switches Glossary
network address
Name or address that identifies a managed product on a transmission control protocol/internet
protocol (TCP/IP) network. The network address can be either an IP address in dotted-decimal
notation (containing four three-digit octets in the format xxx.xxx.xxx.xxx), or a domain name
(as administered on a customer network).
never principal
The setting that prevents the product from becoming the principal switch for a fabric.
nickname
Alternate name assigned to a World Wide Name for a node or director in the fabric.
node
In Fibre Channel terminology, node refers to an end device (server or storage device) that is or
can be connected to a switched fabric.
node port
(N_Port) — Physical interface within an end device that can connect to a fabric port (F_Port) on
a switched fabric or directly to another N_Port (in point-to-point communications).
node port identifier
(N_Port ID) — In Fibre Channel protocol, a unique address identifier by which an N_Port is
uniquely known. It consists of a domain (most significant byte), an area, and a port, each 1 byte
long. The N_Port ID is used in the source identifier (S_ID) and destination identifier (D_ID)
fields of a Fibre Channel frame.
nondisruptive maintenance
Ability to service FRUs (including maintenance, installation, removal and replacement) while
normal operations continue without interruption. See also concurrent maintenance.
N_Port
See node port.
offline sequence
(OLS) — Sequence sent by the transmitting port to indicate that it is attempting to initialize a
link and has detected a problem in doing so.
offline state
When the switch or director is in the offline state, all the installed ports are offline. The ports
transmit an offline sequence (OLS) and they cannot accept a login connection from an attached
device. See also online state.
OLS
See offline sequence.