hpnicfMplsLdpCrlspErHopIpv4PrefixLen 1.3.6.1.4.1.11.2.14.11.15.8.12.2.1.6.2.1.4

If hpnicfMplsLdpCrlspErHopAddrType is ipV4(1), prefix length for this hop's IPv4 address. This object is not significant otherwise and should return a value of 0.