[  843.723501][ T9324] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  843.819937][ T9325] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  843.928226][ T9326] br0: port 1(veth0) entered blocking state
[  843.928530][ T9326] br0: port 1(veth0) entered disabled state
[  843.928799][ T9326] veth0: entered allmulticast mode
[  843.930001][ T9326] veth0: entered promiscuous mode
[  844.054254][ T9327] br0: port 2(veth1) entered blocking state
[  844.054707][ T9327] br0: port 2(veth1) entered disabled state
[  844.055126][ T9327] veth1: entered allmulticast mode
[  844.057497][ T9327] veth1: entered promiscuous mode
[  844.424727][  T883] br0: port 1(veth0) entered blocking state
[  844.425013][  T883] br0: port 1(veth0) entered forwarding state
[  844.426003][  T883] br0: port 2(veth1) entered blocking state
[  844.426253][  T883] br0: port 2(veth1) entered forwarding state
[  845.641641][ T8770] bond0: (slave veth1): link status definitely up
[  845.642006][ T8770] bond0: (slave veth1): making interface the new active one
[  845.643080][ T8770] bond0: active interface up!
[  846.072101][ T8770] veth1: left allmulticast mode
[  846.072332][ T8770] veth1: left promiscuous mode
[  846.072627][ T8770] br0: port 2(veth1) entered disabled state
[  846.074923][ T8770] veth0: left allmulticast mode
[  846.075136][ T8770] veth0: left promiscuous mode
[  846.075449][ T8770] br0: port 1(veth0) entered disabled state
[  846.212639][ T8770] bond0: (slave veth1): Releasing backup interface
[  846.351033][ T8770] bond0: (slave veth0): Releasing backup interface
[  846.603004][ T8770] bond0 (unregistering): Released all slaves