Carrier Access Multi-Service Router (MSR) Card MSR/Adit 3K GUI User Manual
Page 257
Adit 3000 (Rel. 1.6) and MSR Card (Rel 2.0) GUI
Glossary-13
Glossary
ticks
The distance between two networks, measured in time increments. Ticks may be used to
designate primary and secondary routes to the same network.
traffic
The load of packets carried by a network or portion of a network. Heavy traffic slows down
the response time of the individual packets.
trunk
A communication line between two switching systems.
tunneling
To provide a secure, temporary path over the Internet.
User Agent Client (UAC)
One of the two types of User Agents in SIP. UAC initiates a request that is sent to a UAS.
User Agent Server (UAS)
One of the two types of User Agents in SIP. UAS receives a request from a UAC and
returns.
V.90
The standard for full-duplex modems sending and receiving data across phone lines at up
to 56,600 bps, approved by the International Telecommunication Union (ITU) in February,
1998.
Virtual Private Network
(VPN)
A software defined network offering the appearance, functionality and usefulness of a
dedicated private network, at a price savings.
VC MUX
Virtual Channel Multiplexer
Wide Area Network
(WAN)
A private long distance network that uses leased lines to connect computers or LANs. A
wide area network is a linking of computers not physically attached through conventional
network connectivity. Usually the WAN connection is a dedicated or high grade dial up
phone link. It is often done with T1 or T3 connections but can also be through satellite or
other technologies.
WINS
Windows Internet Naming Service. A system that determines the IP address associated
with a particular network computer.
Virtual Connection (VC)
A connection between two hosts in a packet-switching network. In this case, the two hosts
can communicate as though they have a dedicated connection even though the packets
might actually travel very different routes before arriving at their destination.
Virtual Local Area
Network (VLAN)
A VLAN consists of a network of computers that behave as if connected to the same wire,
though they may actually be physically connected to different segments of a LAN. VLANs
are configured through software rather than hardware, which makes them extremely
flexible.