Internal Network Monitoring Software / old Cisco switches ?

What Internal Network Monitoring Software so you recommend to find where all INTERNAL Windows 2012 R2 server traffic is going on my 9+ year old CISCO switches ?
Who is Participating?
Kimberley from PaesslerConnect With a Mentor PRTG Product EvangelistCommented:
Yes, PRTG would be a good choice here.  You'll need to enable SNMP on all of the switches first, and also enable NetFlow, if these models support NetFlow.

Then, set up PRTG, and use the "SNMP Traffic sensors" and NetFlow sensors to monitor the bandwidth.

We offer a free 30-day trial version with unlimited sensors, which will automatically revert to our 100-sensor freeware version after the 30 days.  ([Video] What is a sensor?)   Realistically, you will probably need more than the 100-sensor version, but maybe you can resolve whatever you're looking for within that time.

If your switches don't support netflow, but they do support span ports/mirroring, then you can mirror the traffic to PRTG and then use the "packet sniffer sensor", which will show the same results as the netflow sensors.  However, it's much easier and more efficient to use netflow if you can, so please try that first.

To give you an idea of what this would look like inside PRTG, we have tutorial videos available:
- Video: Bandwidth Monitoring with SNMP and WMI
- Video: Bandwidth Monitoring with NetFlow and Packet Sniffing
Bryant SchaperConnect With a Mentor Commented:
Paessler with net flow is a great choice. Free for the first 100 too. You can use a opmanager to monitor as well,but you need netflow to see where it is going or port mirroring and wireshark. In that case if it is a quick check I like cascade pilot or whatever it is called by riverbed. It can analyze a packet capture and provide more insight.
eeRootConnect With a Mentor Commented:
If this is for a small number of Windows servers, you can use "Microsoft Message Analyzer."  It installs on the server and shows the network traffic, so you would not need to modify the switch's config or set up a dedicated monitoring server.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.