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User Manual for the NETGEAR 7200 Series Layer 2 Managed Switch Software
Glossary B-17
202-10010-01
Trunking
The process of combing a set of trunks that are traffic-engineered as a unit for the establishment of
connections between switching systems in which all of the communications paths are interchangeable.
U
USP
An abbreviation that represents Unit, Slot, Port.
UTP
Unshielded twisted pair is the cable used by 10BASE-T and 100BASE-Tx Ethernet networks.
V
Virtual Local Area Network
Operating at the Data Link Layer (Layer 2 of the OSI model), the VLAN is a means of parsing a single
network into logical user groups or organizations, as if they physically resided on a dedicated LAN segment
of their own. In reality, this virtually defined community may have individual members peppered across a
large, extended LAN. The VLAN identifier is part of the 802.1Q tag, which is added to an Ethernet frame by
an 802.1Q-compliant switch or router. Devices recognizing 802.1Q-tagged frames maintain appropriate
tables to track VLANs. The first three bits of the 802.1Q tag are used by 802.1P to establish priority for the
packet.
VLAN
See “Virtual Local Area Network” on page 17.
W
WAN
See “Wide Area Network” on page 18.
Web
Also known as World-Wide Web (WWW) or W3. An Internet client-server system to distribute information,
based upon the hypertext transfer protocol (HTTP).