[  834.926209][ T9417] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  835.012798][ T9418] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  835.095901][ T9419] br0: port 1(veth0) entered blocking state
[  835.096200][ T9419] br0: port 1(veth0) entered disabled state
[  835.096501][ T9419] veth0: entered allmulticast mode
[  835.097757][ T9419] veth0: entered promiscuous mode
[  835.189140][ T9420] br0: port 2(veth1) entered blocking state
[  835.189508][ T9420] br0: port 2(veth1) entered disabled state
[  835.189809][ T9420] veth1: entered allmulticast mode
[  835.191079][ T9420] veth1: entered promiscuous mode
[  835.631692][ T4915] br0: port 1(veth0) entered blocking state
[  835.632007][ T4915] br0: port 1(veth0) entered forwarding state
[  835.633075][ T4915] br0: port 2(veth1) entered blocking state
[  835.633316][ T4915] br0: port 2(veth1) entered forwarding state
[  836.854945][ T4615] bond0: (slave veth1): link status definitely up
[  836.855421][ T4615] bond0: (slave veth1): making interface the new active one
[  836.856708][ T4615] bond0: active interface up!
[  837.299210][ T4615] veth1: left allmulticast mode
[  837.299516][ T4615] veth1: left promiscuous mode
[  837.299845][ T4615] br0: port 2(veth1) entered disabled state
[  837.302137][ T4615] veth0: left allmulticast mode
[  837.302396][ T4615] veth0: left promiscuous mode
[  837.302742][ T4615] br0: port 1(veth0) entered disabled state
[  837.449071][ T4615] bond0: (slave veth1): Releasing backup interface
[  837.609943][ T4615] bond0: (slave veth0): Releasing backup interface
[  837.959641][ T4615] bond0 (unregistering): Released all slaves