Есть хост с тремя сетевушками:
auto em0
iface em0 inet manual
auto br0
iface br0 inet manual
bridge_ports em0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
auto em1
iface em1 inet manual
auto br1
iface br1 inet manual
bridge_ports em1
bridge_stp off
bridge_fd 0
bridge_maxwait 0
auto eth0
iface eth0 inet manual
auto br2
iface br2 inet manual
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
<interface type='bridge'>
<mac address='52:54:00:cb:10:32'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<interface type='bridge'>
<mac address='52:54:00:be:5a:4f'/>
<source bridge='br1'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</interface>
<interface type='bridge'>
<mac address='52:54:00:e6:1c:e1'/>
<source bridge='br2'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
64 bytes from 192.168.1.1: icmp_seq=588 ttl=64 time=0.300 ms
64 bytes from 192.168.1.1: icmp_seq=589 ttl=64 time=0.345 ms
64 bytes from 192.168.1.1: icmp_seq=590 ttl=64 time=0.296 ms
64 bytes from 192.168.1.1: icmp_seq=591 ttl=64 time=0.296 ms
64 bytes from 192.168.1.1: icmp_seq=592 ttl=64 time=0.298 ms
64 bytes from 192.168.1.1: icmp_seq=598 ttl=64 time=63.1 ms
64 bytes from 192.168.1.1: icmp_seq=599 ttl=64 time=14.8 ms
64 bytes from 192.168.1.1: icmp_seq=616 ttl=64 time=17.4 ms
64 bytes from 192.168.1.1: icmp_seq=623 ttl=64 time=41.5 ms
64 bytes from 192.168.1.1: icmp_seq=632 ttl=64 time=60.5 ms
64 bytes from 192.168.1.1: icmp_seq=636 ttl=64 time=97.6 ms
64 bytes from 192.168.1.1: icmp_seq=647 ttl=64 time=192 ms
64 bytes from 192.168.1.1: icmp_seq=653 ttl=64 time=0.305 ms
64 bytes from 192.168.1.1: icmp_seq=654 ttl=64 time=0.226 ms
64 bytes from 192.168.1.1: icmp_seq=655 ttl=64 time=0.191 ms
64 bytes from 192.168.1.1: icmp_seq=656 ttl=64 time=0.237 ms
64 bytes from 192.168.1.1: icmp_seq=657 ttl=64 time=0.192 ms
64 bytes from 192.168.1.1: icmp_seq=658 ttl=64 time=0.274 ms
64 bytes from 192.168.1.1: icmp_seq=659 ttl=64 time=0.334 ms
...
64 bytes from 192.168.1.1: icmp_seq=76 ttl=64 time=7.45 ms
64 bytes from 192.168.1.1: icmp_seq=101 ttl=64 time=3.31 ms
64 bytes from 192.168.1.1: icmp_seq=104 ttl=64 time=15.1 ms
64 bytes from 192.168.1.1: icmp_seq=106 ttl=64 time=1951 ms
64 bytes from 192.168.1.1: icmp_seq=123 ttl=64 time=37.9 ms
64 bytes from 192.168.1.1: icmp_seq=124 ttl=64 time=0.201 ms
64 bytes from 192.168.1.1: icmp_seq=125 ttl=64 time=0.214 ms
64 bytes from 192.168.1.1: icmp_seq=126 ttl=64 time=0.391 ms
$ top
...
1865 root 20 0 0 0 0 S 30.7 0.0 0:36.19 vhost-1863
...
Виртуалка(192.168.1.2) воткнута в роутер(192.168.1.1) напрямую.
В логах хоста и геста чисто.
Реквестирую советы: в какую сторону проблему ковырять ковырять.
Спасибо за внимание.
PS. Пробовал ту же конструкцию на соседнем сервере, словил вот это: https://bugs.launchpad.net/ubuntu/ source/linux-lts-trusty/ bug/1493753
