ADC 600F User Manual page 131

UDP
upstream traffic
VCI
VCMUX
VC
VPI
VP
WAN
Megabit Modem 400F, 500L, 600F, and 700F User Manual
User Datagram Protocol is a transport protocol used to map inbound traffic (from a
remote IP address) to an internal (LAN) IP address. Uses a protocol port number for
the destination at the remote location.
Communications from a user to a service provider.
Virtual Channel Identifier is a 16-bit field addressing identifier in the header of an ATM
cell used to route cell traffic. It identifies a particular VC link for a given VP.
Virtual Channel Multiplexer-based encapsulation used for networks with large
numbers of virtual channels making it practical to carry a single protocol per virtual
channel.
A Virtual Channel is a logical connection in the ATM network over which ATM cells are
transmitted.
Virtual Path Identifier is an 8-bit field addressing identifier in the header of an ATM
cell that is used to route cell traffic. It identifies a particular VP link.
A Virtual Path is a group of VCs carried between two points. The VP provides a means
of bundling traffic traveling in the same direction. VPs are defined by a unique VPI
value.
Wide Area Network is a network consisting of nodes located across a large
geographical area. Also, the connection between a service provider and Megabit 700F
Modem.
Appendix D: Glossary
121