Alberto Alonso
2008-Apr-05 03:55 UTC
[Xen-users] Network only works for a few seconds during boot
I have a machine with 12 guests. When I boot a guest the network works for about 6 seconds and then it is unreachable. This is the ping status as seen by another machine on the network:>From cn36 (10.6.4.36) icmp_seq=21 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=22 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=23 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=24 Destination Host Unreachable64 bytes from 10.6.50.52: icmp_seq=25 ttl=64 time=1385 ms 64 bytes from 10.6.50.52: icmp_seq=26 ttl=64 time=376 ms 64 bytes from 10.6.50.52: icmp_seq=27 ttl=64 time=0.868 ms 64 bytes from 10.6.50.52: icmp_seq=28 ttl=64 time=0.767 ms 64 bytes from 10.6.50.52: icmp_seq=29 ttl=64 time=0.270 ms 64 bytes from 10.6.50.52: icmp_seq=30 ttl=64 time=0.317 ms>From cn36 (10.6.4.36) icmp_seq=57 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=58 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=59 Destination Host UnreachableThe vps052 ethernet is properly enabled and confifured: vps052:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:16:3E:1E:F4:C0 inet addr:10.6.50.52 Bcast:10.6.127.255 Mask:255.255.128.0 inet6 addr: fe80::216:3eff:fe1e:f4c0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:17 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2724 (2.6 KiB) TX bytes:1266 (1.2 KiB) The network bridge status doesn''t report any problems and shows all the vifs in place: bridge name bridge id STP enabled interfaces xenbr0 8000.feffffffffff no vif0.0 peth0 vif17.0 vif19.0 vif3.0 vif4.0 vif5.0 vif6.0 vif7.0 vif8.0 vif9.0 vif10.0 vif11.0 vif12.0 vif13.0 vif14.0 vif15.0 vif16.0 For dom0 the kernel is Ubuntu''s: 2.6.19-4-server For the domU the kernel is: 2.6.22-14-xen Any ideas of what I should be looking for? Thanks, Alberto _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Alberto Alonso
2008-Apr-06 05:01 UTC
[Xen-users] Network only works for a few seconds during boot
I have a machine with 12 guests. When I boot a guest the network works for about 6 seconds and then it is unreachable. This is the ping status as seen by another machine on the network:>From cn36 (10.6.4.36) icmp_seq=21 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=22 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=23 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=24 Destination Host Unreachable64 bytes from 10.6.50.52: icmp_seq=25 ttl=64 time=1385 ms 64 bytes from 10.6.50.52: icmp_seq=26 ttl=64 time=376 ms 64 bytes from 10.6.50.52: icmp_seq=27 ttl=64 time=0.868 ms 64 bytes from 10.6.50.52: icmp_seq=28 ttl=64 time=0.767 ms 64 bytes from 10.6.50.52: icmp_seq=29 ttl=64 time=0.270 ms 64 bytes from 10.6.50.52: icmp_seq=30 ttl=64 time=0.317 ms>From cn36 (10.6.4.36) icmp_seq=57 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=58 Destination Host Unreachable >From cn36 (10.6.4.36) icmp_seq=59 Destination Host UnreachableThe vps052 ethernet is properly enabled and confifured: vps052:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:16:3E:1E:F4:C0 inet addr:10.6.50.52 Bcast:10.6.127.255 Mask:255.255.128.0 inet6 addr: fe80::216:3eff:fe1e:f4c0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:17 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2724 (2.6 KiB) TX bytes:1266 (1.2 KiB) The network bridge status doesn''t report any problems and shows all the vifs in place: bridge name bridge id STP enabled interfaces xenbr0 8000.feffffffffff no vif0.0 peth0 vif17.0 vif19.0 vif3.0 vif4.0 vif5.0 vif6.0 vif7.0 vif8.0 vif9.0 vif10.0 vif11.0 vif12.0 vif13.0 vif14.0 vif15.0 vif16.0 For dom0 the kernel is Ubuntu''s: 2.6.19-4-server For the domU the kernel is: 2.6.22-14-xen Any ideas of what I should be looking for? Thanks, Alberto _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users