@introloud said in Configure FOG Server's DHCP service?:
I’m gonna try both unicast and multicast to a couple of machines first but I doubt that it’d be any different since it’s on a simple network right now.
This is simple and complex to explain. But a unicast image is sending an image form the fog server to a single target computer. Lets say for example that take 50MB/s of network bandwidth. If you start up a second unicast deployment to a second target computer that will take another 50MB/s of network bandwidth. Now lets add a third simultaneous unicast deployment, Now you are sitting at 150MB/s of network bandwidth usage and 1GbE only has 125MB of available bandwidth, so you will get collisions and throughput slowdowns.
Now lets say you setup a multicast session with those 3 same computers. The image is now being sent out as a multicast. You can have as many receivers as you want, because only one image is being sent out you only consume 50MB/s of network bandwidth. If a receiver is late to the stream, they simply miss the stream and will not be imaged during that streaming session. Using a multicast streaming method you can image 30 computers in about the time it take to image 2 computers using unicasting.
They will be in the same VLAN but probably may have different subnet masks
Strictly speaking you would normally have only one subnet mask per VLAN unless you are doing supernetting for some reason.
imaging task to multiple machines, and have them reboot to get into network boot
Typically you would configure the computers to boot through PXE then boot to the hard drive. That way if FOG had any actions for the computer it could do it while the fog menu is displayed. If there were no jobs then it would just boot the hard drive. You would have the FOG client installed on the target computer so when the schedule task starts the target computer would be instructed to reboot via the fog client program.