[  852.890035][ T9781] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  853.008493][ T9782] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  853.093792][ T9783] br0: port 1(veth0) entered blocking state
[  853.094045][ T9783] br0: port 1(veth0) entered disabled state
[  853.094391][ T9783] veth0: entered allmulticast mode
[  853.095538][ T9783] veth0: entered promiscuous mode
[  853.192888][ T9784] br0: port 2(veth1) entered blocking state
[  853.193239][ T9784] br0: port 2(veth1) entered disabled state
[  853.193515][ T9784] veth1: entered allmulticast mode
[  853.194705][ T9784] veth1: entered promiscuous mode
[  853.602885][ T1899] br0: port 1(veth0) entered blocking state
[  853.603240][ T1899] br0: port 1(veth0) entered forwarding state
[  853.604929][ T1899] br0: port 2(veth1) entered blocking state
[  853.605241][ T1899] br0: port 2(veth1) entered forwarding state
[  854.850722][ T4725] bond0: (slave veth1): link status definitely up
[  854.851097][ T4725] bond0: (slave veth1): making interface the new active one
[  854.859075][ T4725] bond0: active interface up!
[  855.330342][ T4725] veth1: left allmulticast mode
[  855.330587][ T4725] veth1: left promiscuous mode
[  855.330916][ T4725] br0: port 2(veth1) entered disabled state
[  855.333377][ T4725] veth0: left allmulticast mode
[  855.333659][ T4725] veth0: left promiscuous mode
[  855.334082][ T4725] br0: port 1(veth0) entered disabled state
[  855.531864][ T4725] bond0: (slave veth1): Releasing backup interface
[  855.731395][ T4725] bond0: (slave veth0): Releasing backup interface
[  856.085669][ T4725] bond0 (unregistering): Released all slaves