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A-4 StorageWorks Fibre Channel Storage Switch User's Guide
Compaq Confidential – Need to Know Required
Writer: Bill Reitz Project: StorageWorks Fibre Channel Storage Switch User's Guide Comments: StorageWorks Fibre Channel Switch Service Guide
Part Number: AA-RHBYA-TE 135267-001 File Name: h-appa Glossary Last Saved On: 4/7/99 12:36 PM
Table A-1
Switch Terminology
continued
Interswitch Link (ISL) ISL is a fiber link between two Switches
Loop A loop is a configuration of devices (for
example, JBODs) connected to the Fabric
via and FL_Port interface card.
Multicast Multicast is used when multiple copies of
data are to be sent to designated multiple
destinations.
N_Port The N_Port is the designation of an
equipment port connected to the Fabric.
NL_Port The NL_Port is the designation of an
equipment port connected to the Fabric in
a loop configuration via an FL_Port.
Power-on self-test (POST) The POST is a series of self-tests which
run each time the unit is booted or reset.
R_A_TOV (Resource Allocation Time Out
Value)
R_A_TOV is used to time out operations
that depend on the maximum possible
time that a frame could be delayed in a
Fabric and still be delivered. The value of
R_A_TOV is adjustable in 1-microsecond
increments over a range from 10 to 120
seconds. Frames stored in the Switch and
not delivered with R_A_TOV are deleted.
continued
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