I have a Windows 2012 server in a lab environment connected directly to a Cisco SG200 8 Port Gigabit switch configured for Multicasting. I have an image that is about 8GB in size that I using to test with. When I image just a single target machine in unicast it takes about 5 minutes to complete. I then create a multicast of that same image in the WDS console and try imaging the same single machine via Multicast but it take 20 minutes to complete. I also tried this with 7 target machines but the same speed was still just as slow.
The Cisco switch has IGMP snooping enabled and I also tried enabling Multicast Storm Control but still no difference.
Any suggestions as to why the Multicast is SO slow?
Thanks