Since the upgrade to 1.8.11 there must be a length restriction of SNMP-OID-expression (due to
ZBX-1609?), because this long queries don't work anymore and the zabbix_server.log tells only a cut line:
ITEM: 184.108.40.206.4.1.674.10892.1.700.20.1.6.1[index,220.127.116.11.4.1.674.10892.1.700.20.1.8.1,System Board Ambient Temp]
Log-Entry: 20470:20120322:094353.783 item [Company_Host_SVRXX0314:sensor_temperature] became not supported: cannot find index [18.104.22.168.4.1.674.10892.1.700.20.1.8.1] of the OID 22.214.171.124.4.1.674.10892.1.700.20.1.6.1[index,126.96.36.199.4.1.674.
In previous versions this was running very fine (I have this check since at least some 1.6.x-version)...