[  848.243998][ T9458] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  848.343880][ T9459] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  848.429096][ T9460] br0: port 1(veth0) entered blocking state
[  848.429412][ T9460] br0: port 1(veth0) entered disabled state
[  848.429697][ T9460] veth0: entered allmulticast mode
[  848.430907][ T9460] veth0: entered promiscuous mode
[  848.534648][ T9461] br0: port 2(veth1) entered blocking state
[  848.534935][ T9461] br0: port 2(veth1) entered disabled state
[  848.535430][ T9461] veth1: entered allmulticast mode
[  848.536662][ T9461] veth1: entered promiscuous mode
[  848.946671][   T40] br0: port 1(veth0) entered blocking state
[  848.947027][   T40] br0: port 1(veth0) entered forwarding state
[  848.948187][   T40] br0: port 2(veth1) entered blocking state
[  848.948421][   T40] br0: port 2(veth1) entered forwarding state
[  850.179392][ T5347] bond0: (slave veth1): link status definitely up
[  850.179825][ T5347] bond0: (slave veth1): making interface the new active one
[  850.181065][ T5347] bond0: active interface up!
[  850.425367][ T5347] veth1: left allmulticast mode
[  850.425666][ T5347] veth1: left promiscuous mode
[  850.426181][ T5347] br0: port 2(veth1) entered disabled state
[  850.430086][ T5347] veth0: left allmulticast mode
[  850.430354][ T5347] veth0: left promiscuous mode
[  850.430782][ T5347] br0: port 1(veth0) entered disabled state
[  850.636656][ T5347] bond0: (slave veth1): Releasing backup interface
[  850.806574][ T5347] bond0: (slave veth0): Releasing backup interface
[  851.202206][ T5347] bond0 (unregistering): Released all slaves