[Bug 997978] Re: KVM images lose connectivity with bridged network

[Jonathan Tullett]

It took a few days, but we've finally had a failure of VM instance 2.
It died 2.5 hours ago. Logging into the dom0 host shows the arp table
dead for that host:

mailer02.xxxx.com               (incomplete)
br0

Logging into the machine itself via console:

root:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 52:54:00:d3:8f:91  
          inet addr:212.XX.239.101  Bcast:212.XX.239.111  Mask:255.255.255.240
          inet6 addr: fe80::5054:ff:fed3:8f91/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6893246 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8242152 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2290922658 (2.2 GB)  TX bytes:3314395798 (3.3 GB)

root:~# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         212.XX.239.97   0.0.0.0         UG    100    0        0 eth0
212.XX.239.96   0.0.0.0         255.255.255.240 U     0      0        0 eth0

Restarting the network on the vm (/etc/init.d/networking restart) does
nothing. Rebooting the VM brings it back to life.

I'm happy to try with the container again, but using the instructions
provided (even with some additional research online), I can't get it
running.  Please advise.

Thanks.

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https://bugs.launchpad.net/bugs/997978

Title:
  KVM images lose connectivity with bridged network

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