PRTG Manual: Bandwidth Monitoring Comparison
The following table shows the differences between the four bandwidth monitoring methods available in PRTG:
Category  | 
||||
|---|---|---|---|---|
Setup  | 
Medium  | 
Low Low to high (depending on filter rules used)  | 
Can be high (for example, the switch must be configured)  | 
|
Traffic filtering  | 
No  | 
No  | 
Yes  | 
Yes  | 
Differentiate bandwidth usage by protocol or IP addresses  | 
No  | 
No  | 
Yes  | 
Yes  | 
PRTG can show Toplists (Top Talkers, Top Connections, Top Protocols, custom)  | 
No  | 
No  | 
Yes  | 
Yes  | 
Filter bandwidth usage by IP address  | 
No  | 
No  | 
Yes  | 
Yes  | 
Filter bandwidth usage by MAC address  | 
No  | 
No  | 
Yes  | 
No  | 
Filter bandwidth usage by physical network port  | 
Yes  | 
Yes  | 
No  | 
No  | 
Monitor network parameters other than bandwidth usage  | 
Yes  | 
Yes  | 
No  | 
No  | 
CPU load on the PRTG core server system  | 
Medium  | 
Low  | 
Higher, depends on the amount of traffic  | 
Higher, depends on the amount of traffic  | 
Excess bandwidth usage of monitoring  | 
Small  | 
Small  | 
None (except when monitoring switch ports are used)  | 
Depends on the traffic  | 
KNOWLEDGE BASE
Should I use SNMP, Flow (IPFIX/NetFlow/sFlow) or Packet Sniffing for my monitoring?
How do I differentiate between excessive bandwidth usage with PRTG?