[  836.475358][ T9300] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  836.561741][ T9301] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  836.647567][ T9302] br0: port 1(veth0) entered blocking state
[  836.647892][ T9302] br0: port 1(veth0) entered disabled state
[  836.648129][ T9302] veth0: entered allmulticast mode
[  836.649334][ T9302] veth0: entered promiscuous mode
[  836.729411][ T9303] br0: port 2(veth1) entered blocking state
[  836.729663][ T9303] br0: port 2(veth1) entered disabled state
[  836.729898][ T9303] veth1: entered allmulticast mode
[  836.731066][ T9303] veth1: entered promiscuous mode
[  837.291819][ T5344] br0: port 1(veth0) entered blocking state
[  837.292088][ T5344] br0: port 1(veth0) entered forwarding state
[  837.293057][ T5344] br0: port 2(veth1) entered blocking state
[  837.293302][ T5344] br0: port 2(veth1) entered forwarding state
[  838.475867][  T258] bond0: (slave veth1): link status definitely up
[  838.476439][  T258] bond0: (slave veth1): making interface the new active one
[  838.478104][  T258] bond0: active interface up!
[  838.879615][  T258] veth1: left allmulticast mode
[  838.879815][  T258] veth1: left promiscuous mode
[  838.880134][  T258] br0: port 2(veth1) entered disabled state
[  838.882206][  T258] veth0: left allmulticast mode
[  838.882452][  T258] veth0: left promiscuous mode
[  838.882736][  T258] br0: port 1(veth0) entered disabled state
[  839.041848][  T258] bond0: (slave veth1): Releasing backup interface
[  839.183840][  T258] bond0: (slave veth0): Releasing backup interface
[  839.568587][  T258] bond0 (unregistering): Released all slaves