HP StorageWorks 2.32 SAN Switch - Manual (Page 331)

Web Tools Version 3.0.x/4.0.x User Guide Glossary–21
Glossary
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.
Looplet
A set of devices connected in a loop to a port that is a member of another 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 1300-mm lasers and supports
link speeds of 1.0625 Gbps. May also refer to the type of GBIC or SFP.
See also SWL.
Master Port
As relates to trunking, the port that determines the routing paths for all traffic flowing through
the trunking group. One of the ports in the first ISL in the trunking group is designated as the
master port for that group.
See also ISL Trunking.
Media
See transceiver.
MIB
Management Information Base. An SNMP structure to help with device management,
providing configuration and device information.
Modem Serial Port
The upper serial port on the CP Card of the StorageWorks Core switch. Can be used to connect
the CP Card to a modem with a standard 9-pin modem cable. Consists of a DB-9 connector
wired as a RS-232 device, and can be connected by serial cable to a DCE device. A
Hayes-compatible modem or Hayes-emulation is required. The device name is ttyS1.
See also DB-9 connector, DCE port, terminal serial port.