[  869.796969][ T9549] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  869.900527][ T9550] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  869.998260][ T9551] br0: port 1(veth0) entered blocking state
[  869.998750][ T9551] br0: port 1(veth0) entered disabled state
[  869.999075][ T9551] veth0: entered allmulticast mode
[  870.000850][ T9551] veth0: entered promiscuous mode
[  870.089386][ T9552] br0: port 2(veth1) entered blocking state
[  870.089668][ T9552] br0: port 2(veth1) entered disabled state
[  870.097311][ T9552] veth1: entered allmulticast mode
[  870.099351][ T9552] veth1: entered promiscuous mode
[  870.542613][  T280] br0: port 1(veth0) entered blocking state
[  870.542927][  T280] br0: port 1(veth0) entered forwarding state
[  870.555731][  T280] br0: port 2(veth1) entered blocking state
[  870.556089][  T280] br0: port 2(veth1) entered forwarding state
[  871.734398][   T11] bond0: (slave veth1): link status definitely up
[  871.735025][   T11] bond0: (slave veth1): making interface the new active one
[  871.736860][   T11] bond0: active interface up!
[  872.254867][   T11] veth1: left allmulticast mode
[  872.255124][   T11] veth1: left promiscuous mode
[  872.255426][   T11] br0: port 2(veth1) entered disabled state
[  872.257655][   T11] veth0: left allmulticast mode
[  872.258225][   T11] veth0: left promiscuous mode
[  872.258566][   T11] br0: port 1(veth0) entered disabled state
[  872.455698][   T11] bond0: (slave veth1): Releasing backup interface
[  872.570240][   T11] bond0: (slave veth0): Releasing backup interface
[  872.921010][   T11] bond0 (unregistering): Released all slaves