[lxc-devel] Packet loss when high network traffic load
Hi, i'm experiencing some packet loss under high network traffic. Here is the scenario: i have on host with one guest running as a proxy (squid) So, when i start downloading 10-15 dvd image from my client (wget http://ftp.proxad.net/mirrors/ftp.mandriva.com/MandrivaLinux/official/iso/2010.1/mandriva-linux-free-2010-spring-i586.iso -O /dev/null &) with the right http_proxy option positionned; i can see some pacjet loss and latency pinging the host: menil...@antares:~$ ping -c 30 balblair.u06 result: --- balblair.u06.univ-nantes.prive ping statistics --- 30 packets transmitted, 27 received, 10% packet loss, time 33082ms rtt min/avg/max/mdev = 6.264/8.009/9.007/0.818 ms Without downloading something: --- balblair.u06.univ-nantes.prive ping statistics --- 30 packets transmitted, 30 received, 0% packet loss, time 29042ms rtt min/avg/max/mdev = 0.955/1.068/1.285/0.073 ms Here is the network config part of the lxc guest: le reseau lxc.network.type = veth lxc.network.flags = up lxc.network.link = V2003 lxc.network.name = eth0 lxc.network.mtu = 1500 lxc.network.hwaddr = BA:BE:BA:BE:04:01 lxc.network.veth.pair = squid-lmb-clus lxc.network.type = veth lxc.network.flags = up lxc.network.link = V2002 lxc.network.name = eth1 lxc.network.mtu = 1500 lxc.network.hwaddr = BA:BE:BA:BE:04:02 lxc.network.veth.pair = squid-lmb-serv Where V2002 and V2003 are bridge interfaces: r...@balblair:~# brctl show V2002 8000.0024e86f3e03 no eth2.2002 squid-lmb-serv V2003 8000.0024e86f3e03 no eth2.2003 squid-lmb-clus Is it the expected behaviour, or i'm missing some configuration somewhere? Regards. <>-- ___ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
Re: [lxc-devel] Packet loss when high network traffic load
Le 09/12/2010 16:36, Michael Tokarev a écrit : 09.12.2010 18:29, Menil Jean-Philippe wrote: Hi, i'm experiencing some packet loss under high network traffic. Here is the scenario: i have on host with one guest running as a proxy (squid) So, when i start downloading 10-15 dvd image from my client (wget http://ftp.proxad.net/mirrors/ftp.mandriva.com/MandrivaLinux/official/iso/2010.1/mandriva-linux-free-2010-spring-i586.iso -O /dev/null&) with the right http_proxy option positionned; i can see some pacjet loss and latency pinging the host: menil...@antares:~$ ping -c 30 balblair.u06 result: --- balblair.u06.univ-nantes.prive ping statistics --- 30 packets transmitted, 27 received, 10% packet loss, time 33082ms rtt min/avg/max/mdev = 6.264/8.009/9.007/0.818 ms How about trying the same without lxc? Is it the expected behaviour, or i'm missing some configuration somewhere? I think when you saturate your link, some packet loss is to be expected. /mjt Hmmm, i must apologize. I simply reach the limit between my post and the switch. If i ping the host from another pc, ther's no problem at all. Sorry for the noise. <>-- ___ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
[lxc-devel] nf_conntrack question
Hi, On an host, i have nf_conntrack and nf_contrack_ipv6 loaded. For a particular reason, i would know if it is possible to not have theses modules charged on the guest? And sorry for my dumb intervention yesterday, i was a little overheading ... Regards. <>-- ___ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
