Monitor bandwidth with KVM?
Cacti for that really.
Here is a quick one to KVMoIP.
What you need.
1) KVM Switch (router/switch)
2) SIP connectors (Server Interface Pod)
3) Standard Cat5 cable's
You should not really need anything to be compatible.
You plug the cat5 in the SIP, hook the SIP to the server (and switch of course), (monitor/mouse/keyboard) and then configure the IP and so on at the router / switch level.
This will allow you to mount OS's (well most) which is a virtual drive, you can boot into it from bios, and KVM allows you to access the server as if you were sat next to it, the whole boot process, including bios.
KVMoIP basically is, you with the server in front of you, with the only problem, of not being able to change hardware of course.
So overall I hope this settles that KVMoIP is a complete solution with exception of bandwidth monitoring (cacti) to your needs.
So yes, yes and yes it will do all you need
Ok now fedup of typing, hope this helps.
Heads up though, in the UK most KVMoIP switches are a good £200+ however in the US, they are around £50, for a nice cheapo.
SIP's are about £12 a piece.
And of course it will take 1U space if you get or need rack mountable switches.