Eredicator X
2008-Jun-10 12:58 UTC
Re: [Xen-users] Xen reporting wrong network card. WAS:Xen Networking at 100mb instead of 1000
----- Original Message ----- From: "Javier Guerra Giraldez" <javier@guerrag.com> To: xen-users@lists.xensource.com Cc: "Eredicator X" <eredicatorx@hugedesigns.net>, "Joseph L. Casale" <JCasale@activenetwerx.com> Sent: Tuesday, June 10, 2008 9:22:46 PM GMT +09:00 Japan Subject: Re: [Xen-users] Xen reporting wrong network card. WAS:Xen Networking at 100mb instead of 1000 On Tuesday 10 June 2008, Eredicator X wrote:>> From: "Joseph L. Casale" <JCasale@activenetwerx.com> >> >You noticed it running @ 100mbps because that’s all an 8139 in any >> > variation can run! >> >> Hmm I should have checked that first. Thanks, but is it possible that Xen >> is detecting or telling the domU host that it is this card because it >> detects a realtek but cant determine what type it is so it uses the most >> compatiable driver. The onboard card is a Realtek 8111B chip (10/100/1000 >> Mbit) which I am using for this server.>Xen doesn''t have anything to do with your card. it doesn''t have any drivers, >nor manages it in any way. What you ''see'' in DomU is an emulated card, >usually a RealTek 8139, or an Intel e1000, no matter what you physically have >on the machine.Errhh this really spoils my plans for my media server being a domU. I tested w/ iperf and was only getting 71.4 mbs [ 3] local 192.168.1.3 port 54284 connected with 192.168.1.100 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 85.2 MBytes 71.4 Mbits/sec>This emulated card doesn''t talk to hardware, so it could be any kind of card. >also, since it really doesn''t manage a network wire, it can work at any >speed; no matter what does it say.>try to benchmark it. probably won''t be a speed demon; but quite possibly >would get more than 100 Mb/secIs there any way I can increase the through put on a network device like this? Thanks again. Erin _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users