[  837.744572][ T9376] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  837.874328][ T9377] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  837.986455][ T9378] br0: port 1(veth0) entered blocking state
[  837.986752][ T9378] br0: port 1(veth0) entered disabled state
[  837.987020][ T9378] veth0: entered allmulticast mode
[  837.988773][ T9378] veth0: entered promiscuous mode
[  838.075473][ T9379] br0: port 2(veth1) entered blocking state
[  838.075744][ T9379] br0: port 2(veth1) entered disabled state
[  838.076051][ T9379] veth1: entered allmulticast mode
[  838.078407][ T9379] veth1: entered promiscuous mode
[  838.452867][   T72] br0: port 1(veth0) entered blocking state
[  838.453163][   T72] br0: port 1(veth0) entered forwarding state
[  838.454296][   T72] br0: port 2(veth1) entered blocking state
[  838.454564][   T72] br0: port 2(veth1) entered forwarding state
[  839.739404][ T8379] bond0: (slave veth1): link status definitely up
[  839.739883][ T8379] bond0: (slave veth1): making interface the new active one
[  839.741082][ T8379] bond0: active interface up!
[  840.237322][ T8379] veth1: left allmulticast mode
[  840.237638][ T8379] veth1: left promiscuous mode
[  840.238097][ T8379] br0: port 2(veth1) entered disabled state
[  840.241907][ T8379] veth0: left allmulticast mode
[  840.242237][ T8379] veth0: left promiscuous mode
[  840.242695][ T8379] br0: port 1(veth0) entered disabled state
[  840.404051][ T8379] bond0: (slave veth1): Releasing backup interface
[  840.605765][ T8379] bond0: (slave veth0): Releasing backup interface
[  840.962282][ T8379] bond0 (unregistering): Released all slaves