HP AA979A - StorageWorks SAN Switch 2/8V Installation Manual page 107

loop failure
Loss of signal within a loop for any period of time, or loss of synchronization for
longer than the time-out value.
loop initialization
The logical procedure used by an L_Port to discover its environment. Can be used
to assign AL_PA addresses, detect loop failure, or reset a node.
Loop_ID
A hex value representing one of the 127 possible AL_PA values in an arbitrated
loop.
LPSM
Loop Port State Machine. The logical entity that performs arbitrated loop
protocols and defines the behavior of L_Ports when they require access to an
arbitrated loop.
LWL
Long wavelength. A type of fiber optic cabling that is based on 1300mm lasers
and supports link speeds up to 2 Gbit/sec. May also refer to the type of transceiver.
M
master port
The port that determines the routing paths for all traffic flowing through a
trunking group. One of the ports that is in the first ISL in the trunking group is
designated as the master port for that group.
MIB
Management Information Base. An SNMP structure to help with device
management, providing configuration and device information.
multicast
The transmission of data from a single source to multiple specified N_Ports
(as opposed to all the ports on the network).
P
N_Port
Node port. A port on a node that can connect to a fibre channel port or to another
N_Port in a point-to-point connection.
SAN Switch 2/8V, 2/16V and 2/16N Installation Guide
Glossary
107