The number of VPCs (PVPC, Soft PVPC and SVPC)
currently in use at this ATM interface. It includes
the number of PVPCs and Soft PVPCs that are configured
at the interface, plus the number of SVPCs
that are currently established at the
interface.
At the ATM UNI, the configured number of
VPCs (PVPCs and SVPCs) can range from
0 to 256 only.