Switch User's Manual

81
.
U
universal asynchronous receiver-transmitter (UART)
A device that converts outgoing parallel data to
serial transmission and incoming serial data to
parallel for reception.
Universal/Local (U/L)
Determines global and local link addresses; used
with the Extended Unique Identifier (EUI).
universal resource locator (URL)
A standardized method that represents different
documents, media, and network services on the
World Wide Web.
UNIX
A powerful and complex computer operating
system that runs data processing and telephone
systems. Provides multitasking, multiuser
capabilities.
unshielded twisted pair (UTP)
A cable with one or more pairs of twisted
insulated copper conductors bound in a single
plastic sheath.
user-based security model (USM)
A security model that uses a defined set of user
identities for authorized users on a particular
Simple Network Management Protocol (SNMP)
engine.
user-based policies (UBP)
Establishes and enforces roles and conditions on
an individual user basis for access ports in the
network.
Nortel Ethernet Routing Switch 8600
Terminology
NN46205-102 01.01 Standard
30 May 2008
Copyright © 2008 Nortel Networks
.