HP StorageWorks XPath OS 7.4.X MIB Reference Guide (AA-RVHEC-TE, September 2005)

XPath OS 7.4.x MIB reference guide 57
L_Port
Loop port. A node port (NL_Port) or fabric port (FL_Port) that has arbitrated loop capabilities. An L_Port can
be in either Fabric Mode or Loop Mode.
latency
The time required to transmit a frame. Together, latency and bandwidth define the speed and capacity of
a link or system.
LED
Light-emitting diode. A device that indicates the status of elements on a switch.
login server
The unit that responds to login requests.
LPE
Loop port enable. A primitive sequence transmitted by an L_Port to enable one or all L_Ports that have been
bypassed with the LPB. It is used only in arbitrated loops.
LPSM
Loop Port State Machine. Logic that monitors and performs the tasks required for initialization and access
to the loop. It is maintained by an L_Port to track behavior through different phases of loop operations.
Alternatively, the logical entity that performs arbitrated-loop protocols and defines the behavior of L_Ports
when they require access to an arbitrated loop.
MB/sec
Megabytes per second.
Mb/sec
Megabits per second.
MIA
Media interface adapter. A device that converts optical connections to copper ones, and vice-versa.
MIB
Management Information Base. An SNMP structure to help with device management, providing
configuration and device information.
MTBF
Mean time between failures. The average time a component works without failure. The average is
calculated by dividing the number of failures by the hours under observation.
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. See also NL_Port, Nx_Port.
Name Server
Simple Name Server (SNS). A switch service that stores names, addresses, and attributes for up to 15
minutes and provides them as required to other devices in the fabric. SNS is defined by Fibre Channel
standards and exists at a well-known address. Also called a directory service.
NL_Port
Node loop port. A node port that has arbitrated loop capabilities. Used to connect an equipment port to
the fabric in a loop configuration through an FL_Port. See also N_Port, Nx_Port.