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SONET
Synchronous Optical Network. A growing body of standards
that defines all aspects of transmitting and managing digital
traffic over optical (fiber) facilities.
STS-3c
Synchronous Transport Signal, Level 3 Concatenated.
SVC
Switched Virtual Circuit. Circuit that creates a dynamic
connection between two network nodes. SVCs are created
"on demand" and are torn down upon completion of the
data transfer.
TCP/IP
Transmission Control Protocol/Internet Protocol. Network
architecture standard for internetworking multiple
organizations. The TCP/IP protocol stack is dominant in
academic and research sites, and is the standard protocol
for the Internet.
Token ring
A 4 Mbps or a 16 Mbps network using a ring topology and a
token-passing access method.
VBR
Variable Bit Rate. The transmission of data bits at varying
rates over a network.
VCI
Virtual Circuit Identifier. A 2-byte field in an ATM cell header
that, when combined with the VPI (Virtual Path Identifier),
makes up an ATM address.
Virtual circuit (virtual channel)
A "logical transmission path" or connection between two
network endpoints.
Virtual path
A group of virtual circuits that connect two network devices.
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LOSSARY
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