I have two very much identical systems running Asterisk 11 with the SNMP module included. I have found that the order of channel types on the two systems is different. One system has: ASTERISK-MIB::astChanTypeName.1 = STRING: ConfBridgeRec ASTERISK-MIB::astChanTypeName.2 = STRING: Local ASTERISK-MIB::astChanTypeName.3 = STRING: SIP ASTERISK-MIB::astChanTypeName.4 = STRING: Agent ASTERISK-MIB::astChanTypeName.5 = STRING: IAX2 ASTERISK-MIB::astChanTypeName.6 = STRING: Bridge ASTERISK-MIB::astChanTypeName.7 = STRING: MulticastRTP ASTERISK-MIB::astChanTypeName.8 = STRING: DAHDI But the other has: ASTERISK-MIB::astChanTypeName.1 = STRING: ConfBridgeRec ASTERISK-MIB::astChanTypeName.2 = STRING: Local ASTERISK-MIB::astChanTypeName.3 = STRING: Bridge ASTERISK-MIB::astChanTypeName.4 = STRING: SIP ASTERISK-MIB::astChanTypeName.5 = STRING: IAX2 ASTERISK-MIB::astChanTypeName.6 = STRING: Agent ASTERISK-MIB::astChanTypeName.7 = STRING: MulticastRTP ASTERISK-MIB::astChanTypeName.8 = STRING: DAHDI This makes it difficult to have a common MRTG configuration between them monitoring for SIP channel usage. Can anyone tell me: 1. What determines the order of channel types? 2. Is this likely to vary between reboots or rebuilds? 3. Is there a way I can make the order predictable and fixed? modules.conf? 4. Or alternatively, a way I can make MRTG find the correct index dynamically? Thanks for any advice, Tony -- Tony Mountifield Work: tony at softins.co.uk - http://www.softins.co.uk Play: tony at mountifield.org - http://tony.mountifield.org