wfMplsAtmSessNegotiatedVcRangeVpi 1.3.6.1.4.1.18.3.5.9.16.1.4.1.7

The VPI value of the VCs negotiated with LDP peer for this LDP session. The maximum VPI value cannot exceed the value allowable by the wfAtmInterfaceMaxActiveVpiBits. -1 means it is not possible.