[  849.946761][ T9416] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  850.042751][ T9417] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  850.133454][ T9418] br0: port 1(veth0) entered blocking state
[  850.133729][ T9418] br0: port 1(veth0) entered disabled state
[  850.133982][ T9418] veth0: entered allmulticast mode
[  850.135185][ T9418] veth0: entered promiscuous mode
[  850.215468][ T9419] br0: port 2(veth1) entered blocking state
[  850.215739][ T9419] br0: port 2(veth1) entered disabled state
[  850.216000][ T9419] veth1: entered allmulticast mode
[  850.217299][ T9419] veth1: entered promiscuous mode
[  851.137685][   T39] br0: port 1(veth0) entered blocking state
[  851.137962][   T39] br0: port 1(veth0) entered forwarding state
[  851.138895][   T39] br0: port 2(veth1) entered blocking state
[  851.139091][   T39] br0: port 2(veth1) entered forwarding state
[  852.926565][  T257] bond0: (slave veth0): link status definitely up
[  852.927148][  T257] bond0: (slave veth1): link status definitely up
[  852.927379][  T257] bond0: (slave veth0): making interface the new active one
[  852.928534][  T257] bond0: active interface up!
[  853.316605][  T257] veth1: left allmulticast mode
[  853.316839][  T257] veth1: left promiscuous mode
[  853.317156][  T257] br0: port 2(veth1) entered disabled state
[  853.318279][  T257] veth0: left allmulticast mode
[  853.318519][  T257] veth0: left promiscuous mode
[  853.318812][  T257] br0: port 1(veth0) entered disabled state
[  853.473637][  T257] bond0: (slave veth1): Releasing backup interface
[  853.638791][  T257] bond0: (slave veth0): Releasing backup interface
[  854.020914][  T257] bond0 (unregistering): Released all slaves