Re: [Users] ovirt 3.2 - high multicast packet loss

Same for Debian 6 (x86_64); 47% packet loss: ssmping -c 500 192.168.1.234 --- 192.168.1.234 statistics --- 500 packets transmitted, time 500001 ms unicast: 500 packets received, 0% packet loss rtt min/avg/max/std-dev = 0.352/0.675/0.863/0.072 ms multicast: 265 packets received, 47% packet loss since first mc packet (seq 1) recvd rtt min/avg/max/std-dev = 0.414/0.703/0.885/0.086 ms Winfried Hi all, > > Playing around with Red Hat Clustering, it turns out I have a hughe > multicast packet loss: (Centos 6.4 - x86_64 with all updates) > > omping 192.168.1.211 192.168.1.212 -c500 (node1) > omping 192.168.1.212 192.168.1.211 -c500(node2) > > will give almost 50% loss! > > 192.168.1.211 : unicast, xmt/rcv/%loss = 500/500/0%, > min/avg/max/std-dev = 0.330/0.610/0.789/0.064 > 192.168.1.211 : multicast, xmt/rcv/%loss = 500/268/46%, > min/avg/max/std-dev = 0.416/0.635/0.921/0.066 > > 192.168.1.212 : unicast, xmt/rcv/%loss = 500/500/0%, > min/avg/max/std-dev = 0.388/0.653/0.863/0.069 > 192.168.1.212 : multicast, xmt/rcv/%loss = 500/263/47%, > min/avg/max/std-dev = 0.396/0.670/1.080/0.074 > > OK, I am using simple hardware, but this hardware is virtually doing > nothing... > > As mentioned on > https://access.redhat.com/knowledge/sites/default/files/attachments/rhel_..., > I set the txqueelen to 500, same result? > > I 'm still guessing whether this is an oVirt, virtio or Red > Hat/Centos issue? Problems only happend after some time; that is 200 > mo-pings shows everything is fine. > > Anyone? > > Winfried > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users