It is getting to where everything these days has an IP address and network management is becoming a concern. Last night I had a short period of time where some sort of network storm was messing with my LAN and I realized that with over 200 addresses now reserved in my router table it is no longer practical to troubleshoot something like this by going around and unplugging things one to a time.
So now I am wondering I replace my main 24 port unmanaged switch with a managed one if that would help me find issue quickly. I've never used a managed switch so I;m not sure what info they will tell you about real-time traffic at each port or how hard it is to dig it out. Ideally i would like to see a graphic where all active ports are green when operating normally and turn red when something connected to them is misbehaving so I can quickly zero in on the offending device.
1 Will a managed switch do what I am looking for?
2 Is there a preferred brand for this purpose?
Note I really don't need a lot of QOS or LAN segmentation features. I just need a way to quickly identify which switch port a misbehaving device is connected to.