The value of tmnxOamLspPingCtlAssocChannel specifies the launched echo
request's usage of the Associated Channel (ACH) mechanism, when testing
an MPLS-TP LSP.
When tmnxOamLspPingCtlTestSubMode is 'static(2)', the default value
for tmnxOamLspPingCtlAssocChannel is 'nonIp(2)'.
The supported object combinations for LSP ping tests are listed in the
tmnxOamLspPingCtlTable DESCRIPTION clause.