I`m a little bit confuse about how PRTG choose "Interface number" while creating SNMP Traffic Sensor Manualy or running Auto Discovery on specific host. Let me explain what i mean. While creating SNMP Traffic Sensor in a first time PRTG sets it`s "Interface number" (it can be see at Settings tab of a sensor) to something like "1","2","3" etc. according to device interface number. That`s fine to me. But. As soon as i create or change device interface description (like "my_favorite_server") and then start auto discovery process for this device, PRTG creates a copy of existing SNMP Traffic Sensor for this interface giving it`s "Interface number" value like "1:my_favorite_server".
So, for every SNMP Traffic Sensor with changed device interface description, PRTG creates another one sensor with "new" "Interface number". Frequent change of device interface description will result in constant loss of historical data or hundred of copied sensors.
Questions are: 1. Why PRTG uses device interface description while setting Interface number. 2. Can i choose somehow or somewhere naming policy (tell PRGT use only device interface number w/o adding it`s description).
P.S. Monitored devices: DLink DES-3526 / DES-3550 / DES-3200 / DGS-3700-12G Cisco Catalyst 3750 Cisco 7301 / Cisco 2851