The MIB supported by the SNMP agent for the L2TP application in the
Unisphere Routing Switch. These capabilities became obsolete when
rsL2tpTunnelStatusCumEstabTime, rsL2tpSessionStatusCumEstabTime and
rsL2tpSessionStatPayLostPackets were added, and
rsL2tpSessionStatusLacTunneledIfIndex replaced
rsL2tpSessionStatusLacPppIfIndex.