[  848.676354][ T9477] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  848.772680][ T9478] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  848.877689][ T9479] br0: port 1(veth0) entered blocking state
[  848.878204][ T9479] br0: port 1(veth0) entered disabled state
[  848.878638][ T9479] veth0: entered allmulticast mode
[  848.880648][ T9479] veth0: entered promiscuous mode
[  848.972594][ T9480] br0: port 2(veth1) entered blocking state
[  848.972896][ T9480] br0: port 2(veth1) entered disabled state
[  848.973180][ T9480] veth1: entered allmulticast mode
[  848.974400][ T9480] veth1: entered promiscuous mode
[  849.402601][ T1567] br0: port 1(veth0) entered blocking state
[  849.402914][ T1567] br0: port 1(veth0) entered forwarding state
[  849.403997][ T1567] br0: port 2(veth1) entered blocking state
[  849.404249][ T1567] br0: port 2(veth1) entered forwarding state
[  850.626390][ T8714] bond0: (slave veth1): link status definitely up
[  850.626803][ T8714] bond0: (slave veth1): making interface the new active one
[  850.627930][ T8714] bond0: active interface up!
[  851.058014][ T8714] veth1: left allmulticast mode
[  851.058235][ T8714] veth1: left promiscuous mode
[  851.058585][ T8714] br0: port 2(veth1) entered disabled state
[  851.062058][ T8714] veth0: left allmulticast mode
[  851.062367][ T8714] veth0: left promiscuous mode
[  851.062710][ T8714] br0: port 1(veth0) entered disabled state
[  851.241503][ T8714] bond0: (slave veth1): Releasing backup interface
[  851.461091][ T8714] bond0: (slave veth0): Releasing backup interface
[  851.839139][ T8714] bond0 (unregistering): Released all slaves