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Glossary April 14, 2006
GL-4 MM70xG2-UM-03
VPI – 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.
VP – 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.
W
WAN – Wide Area Network is a network consisting of nodes located across a large geographical area. Also, the
connection between a service provider and MM Modem.