Windows Server 2012 Thread, Multicast joy using the legacy adapter in Technical; So after weeks of testing/playing etc. WDS on server 2012 as a VM guest on a hyper v host sucks ...
11th October 2013, 04:58 PM #1
Multicast joy using the legacy adapter
So after weeks of testing/playing etc. WDS on server 2012 as a VM guest on a hyper v host sucks at multicast 1000kbps (if your lucky) through the hyperv vm nic. About 7000-8000kbps though the legacy adapter. Does anybody know how you can force a slowdown request to the wds server? I don't really want to use the legacy nic as its not recommended, it also eats up the cpu. The client is getting flooded with packets due the host being on a gig port. Flow Control helps but only if available on hyper v vm nics (which it isn't).
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11th October 2013, 05:14 PM #2
Perhaps enable bandwidth management on the NIC in the VM settings? Will affect the whole VM unfortunately, not just WDS, but might be worth a try.
11th October 2013, 10:05 PM #3
Tried it. No change. Other than I can throttle it down below 1000kbps.
14th October 2013, 11:12 AM #4
I was told never to use hardware flow control (or I suppose emulated hardware) as the TCP/IP Stack has flow control built in and they conflict?
14th October 2013, 04:31 PM #5
Change TpMaxBandwidth to 1 (the default is 100) that's decimal not hex. This works with a mdt server in hyper v with a 1gbps physical nic and 100mbps clients. If anyone ever has a issue with this let me know as I have literally spent 2 months on this issue. I wish M$ would document all registry keys.
Last edited by free780; 14th October 2013 at 05:29 PM.
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