[  856.932360][ T9286] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  857.020526][ T9287] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  857.100152][ T9288] br0: port 1(veth0) entered blocking state
[  857.100766][ T9288] br0: port 1(veth0) entered disabled state
[  857.101047][ T9288] veth0: entered allmulticast mode
[  857.102236][ T9288] veth0: entered promiscuous mode
[  857.196435][ T9289] br0: port 2(veth1) entered blocking state
[  857.196795][ T9289] br0: port 2(veth1) entered disabled state
[  857.197047][ T9289] veth1: entered allmulticast mode
[  857.198472][ T9289] veth1: entered promiscuous mode
[  857.696784][   T39] br0: port 1(veth0) entered blocking state
[  857.697136][   T39] br0: port 1(veth0) entered forwarding state
[  857.698985][   T39] br0: port 2(veth1) entered blocking state
[  857.699333][   T39] br0: port 2(veth1) entered forwarding state
[  858.886984][ T4884] bond0: (slave veth1): link status definitely up
[  858.887486][ T4884] bond0: (slave veth1): making interface the new active one
[  858.888653][ T4884] bond0: active interface up!
[  859.164255][ T8444] veth1: left allmulticast mode
[  859.164582][ T8444] veth1: left promiscuous mode
[  859.165007][ T8444] br0: port 2(veth1) entered disabled state
[  859.167810][ T8444] veth0: left allmulticast mode
[  859.167998][ T8444] veth0: left promiscuous mode
[  859.168267][ T8444] br0: port 1(veth0) entered disabled state
[  859.305048][ T8444] bond0: (slave veth1): Releasing backup interface
[  859.449425][ T8444] bond0: (slave veth0): Releasing backup interface
[  859.814962][ T8444] bond0 (unregistering): Released all slaves