With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
l2tHistTunnelTunnelIndex
l2t History Tunnel Tunnel Index
1.3.6.1.4.1.2.6.119.4.7.5.1.1.2
The value which was used as the tunnel stats table index.
Back to ibm-ibml2tp MIB page.
IPHost Network monitor allows you to monitor l2tHistTunnelTunnelIndex on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM switches right now.