[  838.989170][ T9337] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  839.101613][ T9338] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  839.185567][ T9339] br0: port 1(veth0) entered blocking state
[  839.185922][ T9339] br0: port 1(veth0) entered disabled state
[  839.186312][ T9339] veth0: entered allmulticast mode
[  839.188207][ T9339] veth0: entered promiscuous mode
[  839.306962][ T9340] br0: port 2(veth1) entered blocking state
[  839.307245][ T9340] br0: port 2(veth1) entered disabled state
[  839.307539][ T9340] veth1: entered allmulticast mode
[  839.308882][ T9340] veth1: entered promiscuous mode
[  840.075064][   T55] br0: port 1(veth0) entered blocking state
[  840.075473][   T55] br0: port 1(veth0) entered forwarding state
[  840.078090][   T55] br0: port 2(veth1) entered blocking state
[  840.078461][   T55] br0: port 2(veth1) entered forwarding state
[  841.930206][ T8912] bond0: (slave veth0): link status definitely up
[  841.931192][ T8912] bond0: (slave veth1): link status definitely up
[  841.931671][ T8912] bond0: (slave veth0): making interface the new active one
[  841.933790][ T8912] bond0: active interface up!
[  842.329025][ T8912] veth1: left allmulticast mode
[  842.329332][ T8912] veth1: left promiscuous mode
[  842.329849][ T8912] br0: port 2(veth1) entered disabled state
[  842.331784][ T8912] veth0: left allmulticast mode
[  842.332423][ T8912] veth0: left promiscuous mode
[  842.332843][ T8912] br0: port 1(veth0) entered disabled state
[  842.514409][ T8912] bond0: (slave veth1): Releasing backup interface
[  842.682963][ T8912] bond0: (slave veth0): Releasing backup interface
[  843.034506][ T8912] bond0 (unregistering): Released all slaves