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RE: [coLinux-users] colinux 0.6.1 network patcket loss
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From: Claude L. (QB/EMC) <cla...@er...> - 2004-09-03 17:03:14
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Hi, I got a similar problem. Look at the "NFS performance and colinux" thread in this mailing list. I suspect a packet fragmentation/reassembly problem with the bridging network configuration. Try your ping test with large packet size to create fragmentation. The results should be worse. I am using colinux on Windows 2000 SP4 with ethernet bridging. I use Winpcap 3.1beta. My problem concerned the NFS performance over colinux. I realized the system suffered from packet loss. Enabling "NFS over TCP" in the kernel fixed my problem. But, my colinux system still suffers from packet loss when I try the ping test. Regards, Claude. -----Original Message----- From: col...@li... [mailto:col...@li...]On Behalf Of sophana Sent: Thursday, September 02, 2004 10:57 AM To: col...@li... Subject: [coLinux-users] colinux 0.6.1 network patcket loss Hi I installed a redhat 7.3 image with colinux 0.6.1 with XP sp1, with tap network (winpcap 3.1 beta) I use XP native ethernet bridging. First question: does the tap network driver uses winpcap? which version of winpcap is the best? (3.0 or 3.1beta?) There are some strange network problems: when I ping from colinux to another machine, I have 0% packet loss. When I ping the other machine to colinux, I have about 20 to 30% packet loss. when I do bidirectionnal iperf I obtain about 20mbit from colinux and 30mbit to colinux (100mbit fast ethernet switch with broadcom bcm5700 gigabit controller) With bidir iperf under windows, I have 20mbit upload and 90 mbit download. (90mbit both ways when half duplex) Does any have have the problem of packet loss? Is it a known problem? there is a post on the list indicating problems with nfs because of packet loss also? Is there a solution? I suspect macAfee antivirus... (I cannot remove it because of the IT guy here...) One more strange problem: top indicates all process usage under system usage. the user cpu usage is always 0... Thanks Sophana ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click _______________________________________________ coLinux-users mailing list coL...@li... https://lists.sourceforge.net/lists/listinfo/colinux-users |
