This attribute specifies the type of the Vpt.

On CQC-based ATM FPs all Vpts must be basic. Vpts on ATM IP FPs may be of any type.

A value of basic configures one level of traffic management (TM) for the VPT, at the VC level. VCs within the VP are treated like independent VCC connections, and thus, are scheduled the same as other VCs under the AtmIf, with no scheduling done for the VP itself.

A value of standard configures two levels of TM for the VPT, one level for VP TM and one level for VC level TM. VCs within the VP use weighted fair queueing (standard VPT VCC scheduling) to schedule VCs within the VPT, with VCs differentiated as either real-time (CBR, rt-VBR) or non-real-time (nrt-VBR, UBR) connections. The VP itself has a full range of emission scheduling and service category differentiation available between itself and the other connections under the AtmIf.