Table of Contents
Advertisement
trap host
trap recipient
trunk cable
U
UDP
UL
ULP
unblocked connection
unblocked port
Underwriters
Laboratories
unicast
uninterruptable power
supply
UNIX
Simple network management protocol (SNMP) management work-
station that is configured to receive traps.
In simple network management protocol (SNMP), a network man-
agement station that receives messages through SNMP for specific
events that occur on the arbitrated loop device.
Cable consisting of multiple fiber pairs that do not directly attach to
an active device. This cable usually exists between distribution panels
and can be located within, or external to, a building (D). Contrast with
jumper
cable. See also
optical
See
user datagram
protocol.
See
Underwriters
Laboratories.
See
upper level
protocol.
In a director or switch, the absence of the blocked attribute for a spe-
cific port. Contrast with
blocked
See also
allowed
connection;
ity.
Devices communicating with an unblocked port can login to the
director or switch and communicate with devices attached to any
other unblocked port (assuming that this is supported by the current
zoning configuration).
UL. A laboratory organization accredited by the Occupational Safety
and Health Administration and authorized to certify products for use
in the home and workplace (D).
Communication between a single sender and a single receiver over a
network.
UPS. A buffer between public utility power or another power source,
and a system that requires precise, uninterrupted power (D).
A popular multi-user, multitasking operating system originally
designed to be a small, flexible system used exclusively by program-
cable.
connection. See
connectivity
dynamic
connection;
dynamic connectiv-
attribute.
Glossary
575
Advertisement
Table of Contents
