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This soft copy for use by IBM employees only.
virtual channel identifier values are assigned and the
point where those values are translated or removed.
VPI (Virtual Path Identifier). The VPI/VCI pair
uniquely identify a specific ATM connection on a
given link.
virtual path link. The group of virtual channel links,
identified by a common value of the virtual path
identifier, between the point where the VPI value is
assigned and the point where the VPI value is
translated or removed.
virtual path switch. A network element that connects
VPLs. It translates VPI (not VCI) values and is
directed by control plane functions. It relays the cells
of the VP.
virtual path terminator. A system that unbundles the
VCs of a VP for independent processing of each VC.
Glossary 289