[  838.505635][ T9317] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  838.593776][ T9318] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  838.670914][ T9319] br0: port 1(veth0) entered blocking state
[  838.671206][ T9319] br0: port 1(veth0) entered disabled state
[  838.671482][ T9319] veth0: entered allmulticast mode
[  838.672904][ T9319] veth0: entered promiscuous mode
[  838.776140][ T9320] br0: port 2(veth1) entered blocking state
[  838.777091][ T9320] br0: port 2(veth1) entered disabled state
[  838.777495][ T9320] veth1: entered allmulticast mode
[  838.779480][ T9320] veth1: entered promiscuous mode
[  839.244017][   T55] br0: port 1(veth0) entered blocking state
[  839.244294][   T55] br0: port 1(veth0) entered forwarding state
[  839.245250][   T55] br0: port 2(veth1) entered blocking state
[  839.245470][   T55] br0: port 2(veth1) entered forwarding state
[  840.460051][  T256] bond0: (slave veth1): link status definitely up
[  840.460578][  T256] bond0: (slave veth1): making interface the new active one
[  840.462041][  T256] bond0: active interface up!
[  840.762471][ T5740] veth1: left allmulticast mode
[  840.762782][ T5740] veth1: left promiscuous mode
[  840.763227][ T5740] br0: port 2(veth1) entered disabled state
[  840.766622][ T5740] veth0: left allmulticast mode
[  840.766818][ T5740] veth0: left promiscuous mode
[  840.767102][ T5740] br0: port 1(veth0) entered disabled state
[  840.969286][ T5740] bond0: (slave veth1): Releasing backup interface
[  841.164435][ T5740] bond0: (slave veth0): Releasing backup interface
[  841.567898][ T5740] bond0 (unregistering): Released all slaves