[  833.995747][ T9455] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  834.090945][ T9456] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  834.177358][ T9457] br0: port 1(veth0) entered blocking state
[  834.177667][ T9457] br0: port 1(veth0) entered disabled state
[  834.177958][ T9457] veth0: entered allmulticast mode
[  834.179155][ T9457] veth0: entered promiscuous mode
[  834.290840][ T9458] br0: port 2(veth1) entered blocking state
[  834.291308][ T9458] br0: port 2(veth1) entered disabled state
[  834.291676][ T9458] veth1: entered allmulticast mode
[  834.294467][ T9458] veth1: entered promiscuous mode
[  834.835058][   T37] br0: port 1(veth0) entered blocking state
[  834.835424][   T37] br0: port 1(veth0) entered forwarding state
[  834.836456][   T37] br0: port 2(veth1) entered blocking state
[  834.836694][   T37] br0: port 2(veth1) entered forwarding state
[  835.954963][ T8879] bond0: (slave veth1): link status definitely up
[  835.955586][ T8879] bond0: (slave veth1): making interface the new active one
[  835.957336][ T8879] bond0: active interface up!
[  836.281997][ T8879] veth1: left allmulticast mode
[  836.282279][ T8879] veth1: left promiscuous mode
[  836.282907][ T8879] br0: port 2(veth1) entered disabled state
[  836.284963][ T8879] veth0: left allmulticast mode
[  836.285154][ T8879] veth0: left promiscuous mode
[  836.285419][ T8879] br0: port 1(veth0) entered disabled state
[  836.470639][ T8879] bond0: (slave veth1): Releasing backup interface
[  836.647651][ T8879] bond0: (slave veth0): Releasing backup interface
[  837.019014][ T8879] bond0 (unregistering): Released all slaves