usdAtmVpTunnelIfIndex 1.3.6.1.4.1.4874.2.2.8.1.1.4.1.1

The ifIndex of the ATM interface. The value of this object is the same as the usdAtmIfIndex object in the usdAtmIfTable. Entries in this table cannot be created unless the underlying ATM interface entry is created first in the usdAtmIfTable.