The maximum VPI that the signalling stack on the ATM
interface may currently allocate to switched virtual
path connections. This value is the minimum of
ciscoatmInterfaceConfMaxSvpcVpi, and the
ciscoatmInterfaceConfMaxSvpcVpi of the interface's
UNI/NNI peer.
If the interface does not negotiate with its peer to
determine the maximum VPI that can be allocated to
SVPCs on the interface, then the value of this object
must equal ciscoatmInterfaceConfMaxSvpcVpi.