[  842.978187][ T9929] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  843.068109][ T9930] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  843.179461][ T9931] br0: port 1(veth0) entered blocking state
[  843.179854][ T9931] br0: port 1(veth0) entered disabled state
[  843.180189][ T9931] veth0: entered allmulticast mode
[  843.181589][ T9931] veth0: entered promiscuous mode
[  843.288777][ T9932] br0: port 2(veth1) entered blocking state
[  843.289171][ T9932] br0: port 2(veth1) entered disabled state
[  843.289418][ T9932] veth1: entered allmulticast mode
[  843.290964][ T9932] veth1: entered promiscuous mode
[  843.714401][   T40] br0: port 1(veth0) entered blocking state
[  843.714753][   T40] br0: port 1(veth0) entered forwarding state
[  843.715770][   T40] br0: port 2(veth1) entered blocking state
[  843.716015][   T40] br0: port 2(veth1) entered forwarding state
[  844.921398][ T4987] bond0: (slave veth1): link status definitely up
[  844.922028][ T4987] bond0: (slave veth1): making interface the new active one
[  844.924240][ T4987] bond0: active interface up!
[  845.158994][ T4987] veth1: left allmulticast mode
[  845.159246][ T4987] veth1: left promiscuous mode
[  845.159560][ T4987] br0: port 2(veth1) entered disabled state
[  845.161714][ T4987] veth0: left allmulticast mode
[  845.161996][ T4987] veth0: left promiscuous mode
[  845.162286][ T4987] br0: port 1(veth0) entered disabled state
[  845.310259][ T4987] bond0: (slave veth1): Releasing backup interface
[  845.392217][ T4987] bond0: (slave veth0): Releasing backup interface
[  845.761256][ T4987] bond0 (unregistering): Released all slaves