The maximum VPI that the signalling stack on the ATM
interface may currently allocate to switched virtual
channel connections. This value is the minimum of
ciscoatmInterfaceConfMaxSvccVpi, and the
ciscoatmInterfaceConfMaxSvccVpi 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
SVCCs on the interface, then the value of this object
must equal ciscoatmInterfaceConfMaxSvccVpi.