OID for a number of tunnels

Hello, I want to monitor a number of active tunnels on my L2TP Server and I want to do it with SNMP.
Is it possible?
See attached

Winbox does the counting, not RouterOS. Check console for “print oid” in various locations on what OIDs are there.

Thanks.

SSH: >ppp active print count-only give the same result.
But >ppp active print count-only oid is not exist

Thanks.

SSH: >ppp active print count-only give the same result.
But >ppp active print count-only oid doesn’t exist