Yes, actually the system was at 7.1 TL3, SP2 at the start (see post #1). The only package missing was infocenter, which is why TL2 was shown in the oslevel output.
Finally i found a "solution" to my problem: install a even newer version. As it seems the version i used was somewhat differently abled, as i believe the politically correct euphemism for "buggy" is....
In fact all the MIB settings are in place (this is basically what the mentioned entries in /etc/snmpdv3.conf do) and the quoted line with the snmpinfo command proves that snmp is...
I have troubles making clstat work. All the "usual suspects" have been covered but still no luck. The topology is a two-node active/passive with only one network-interface (it is a test-setup). The...