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.
