Limiting every VM to 100mbit

[Povo]

Hi all,

I was wondering - is it possible to limit each VM to a 100mbit NIC? When I am creating VMs in VSphere Client I can only select gigabit NIC.

I have a server with a gigabit NIC but I only want to expose each VM to 100mbit.

Regards.

[TomHowarth · Accepted solution]

Yes you can, the main question is why would you want too.  By limiting a machine to 100MB you are removing the ability to utilize the full bandwidth capability of the physical nic.  ESX does a very good job of managing the scheduling of resources between Guest at a host level and with the introduction of NIOC at a cluster level.

[Povo]

I guess your reply makes sense. My main worry was some VM hogging the bandwidth and other VMs becoming unusable. Is this something ESX would handle?

[TomHowarth]

it will handle that by design.  what you are talking about is a concept called noisy neighbor. 

[Povo]

Thanks for your help. I will keep them all at a gigabit so!