[  855.400600][ T9804] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  855.491645][ T9805] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  855.588378][ T9806] br0: port 1(veth0) entered blocking state
[  855.588658][ T9806] br0: port 1(veth0) entered disabled state
[  855.588934][ T9806] veth0: entered allmulticast mode
[  855.591092][ T9806] veth0: entered promiscuous mode
[  855.671411][ T9807] br0: port 2(veth1) entered blocking state
[  855.671688][ T9807] br0: port 2(veth1) entered disabled state
[  855.671960][ T9807] veth1: entered allmulticast mode
[  855.680185][ T9807] veth1: entered promiscuous mode
[  856.058136][   T40] br0: port 1(veth0) entered blocking state
[  856.058498][   T40] br0: port 1(veth0) entered forwarding state
[  856.059924][   T40] br0: port 2(veth1) entered blocking state
[  856.060252][   T40] br0: port 2(veth1) entered forwarding state
[  857.352517][ T9041] bond0: (slave veth1): link status definitely up
[  857.352994][ T9041] bond0: (slave veth1): making interface the new active one
[  857.354302][ T9041] bond0: active interface up!
[  857.847777][ T9041] veth1: left allmulticast mode
[  857.848004][ T9041] veth1: left promiscuous mode
[  857.848336][ T9041] br0: port 2(veth1) entered disabled state
[  857.850513][ T9041] veth0: left allmulticast mode
[  857.850703][ T9041] veth0: left promiscuous mode
[  857.850975][ T9041] br0: port 1(veth0) entered disabled state
[  858.011149][ T9041] bond0: (slave veth1): Releasing backup interface
[  858.219702][ T9041] bond0: (slave veth0): Releasing backup interface
[  858.604957][ T9041] bond0 (unregistering): Released all slaves