Hello, I found also that when I capture traffic from tap interface and check it in wireshark then I see a lot of TCP DUP ACK packets before disconnection. Guys, really anyone has got similar problem with vxlan and windows guests? or anyone is using windows on such instances?
--- Best regards Sławek Kapłoński sla...@kaplonski.pl Dnia wtorek, 14 października 2014 20:30:28 Sławek Kapłoński pisze: > Hello, > > I was trying with newest driver downloaded from > http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/ > and also on older version. > > I did small test with two instances on one host. Then all traffic is going > only via br-int bridge in ovs (no any vxlan tunnel) and problem was the > same. But when I manually remove both tap interfeces from ovs and put it > into linux bridge than I not have this issue. So imho there is some problem > with openvswitch. > I'm using 1.11 version of opensvitch but yesterday I build from sources > version 2.3.0 and still is the same :/ > I'm using kernel 3.13 on compute hosts. > Really anyone have got such issue with vxlan tunnels and windows guests? > > --- > Best regards > Sławek Kapłoński > sla...@kaplonski.pl > > Dnia wtorek, 14 października 2014 07:15:24 piszesz: > > Which virtio drivers are you using in your Windows guest? > > > > P > > > > On Oct 10, 2014 3:56 PM, "Sławek Kapłoński" <sla...@kaplonski.pl> wrote: > > > Hello, > > > > > > I have neutron with vxlan tenant networks. I'm using openvswitch to make > > > vxlan > > > tunnels. > > > Today I found strange problem with instances with Windows server > > > installed > > > on > > > guests. First problem is that tcp sessions (like RDP connection beetween > > > two > > > servers) in such tenant network are sometimes disconnected for a while > > > (like > > > packet loss in network). Second issue is that I have not good > > > performance > > > on > > > windows. My hosts have got 10Gbps network cards, I have set jumbo frames > > > (mtu=9000 on hosts) and if I set for example mtu=8950 on linux guests > > > than > > > I > > > have about 9Gbps when test with iperf. On windows I have about 2-2.5Gbps > > > with > > > mtu=1500 and even less with bigger mtu. > > > Do You maybe have such problems with windows guests using vxlan tunnels > > > network? > > > I'm testing it on Windows server 2012 R2. > > > > > > --- > > > Best regards > > > Sławek Kapłoński > > > sla...@kaplonski.pl > > > _______________________________________________ > > > OpenStack-operators mailing list > > > openstack-operat...@lists.openstack.org > > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
