intrepid Intrepid 6140 Director, Installation And Service Manual

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g-20 Intrepid® 6140 Director Installation and Service Manual
Glossary
preferred domain ID The domain ID that a director or switch requests from a fabric
principal switch. If the preferred value is in use, the principal switch
assigns a different value. See also
domain ID .
principal switch In a multiswitch fabric, the switch that allocates domain IDs to itself
and all other switches in the fabric. There is always one principal
switch in a fabric. If a switch is not connected to any other switches, it
acts as its own principal switch.
private device An arbitrated loop device that cannot transmit a FLOGI command to
a switch or director, nor communicate with fabric-attached devices.
Contrast with
public device .
private loop A private arbitrated loop is not connected to a switched fabric. All
devices attached to the loop can only communicate with each other.
Contrast with
public loop .
Product Status Log A log recorded at the EFC Manager application that displays an entry
when the status of a director or switch changes. The log reflects the
previous status and current status of a managed product, and
indicates the instance of a Element Manager application that should
be opened to investigate a problem.
public device An arbitrated loop device that can transmit a FLOGI command a
switch, receive acknowledgement from the switch’s login server,
register with the switch’s name server, and communicate with
fabric-attached devices. Contrast with
private device .
public loop A public arbitrated loop is connected to a switched fabric. All devices
attached to the loop can communicate with each other, and public
devices attached to the loop can communicate with fabric-attached
devices. Contrast with
private loop .
R
radio frequency
interference
Electromagnetic radiation emitted by electrical circuits during
normal operation, which causes unwanted signals (interference or
noise) to be induced in other circuits.
R_A_TOV
See resource allocation time-out value .