[  837.529616][ T9447] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  837.628346][ T9448] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  837.713261][ T9449] br0: port 1(veth0) entered blocking state
[  837.713511][ T9449] br0: port 1(veth0) entered disabled state
[  837.713749][ T9449] veth0: entered allmulticast mode
[  837.714927][ T9449] veth0: entered promiscuous mode
[  837.801079][ T9450] br0: port 2(veth1) entered blocking state
[  837.801520][ T9450] br0: port 2(veth1) entered disabled state
[  837.801917][ T9450] veth1: entered allmulticast mode
[  837.803955][ T9450] veth1: entered promiscuous mode
[  838.262198][ T8731] br0: port 1(veth0) entered blocking state
[  838.262483][ T8731] br0: port 1(veth0) entered forwarding state
[  838.263443][ T8731] br0: port 2(veth1) entered blocking state
[  838.263676][ T8731] br0: port 2(veth1) entered forwarding state
[  839.493964][ T8570] bond0: (slave veth1): link status definitely up
[  839.494429][ T8570] bond0: (slave veth1): making interface the new active one
[  839.496004][ T8570] bond0: active interface up!
[  839.811331][ T8570] veth1: left allmulticast mode
[  839.811533][ T8570] veth1: left promiscuous mode
[  839.811848][ T8570] br0: port 2(veth1) entered disabled state
[  839.814071][ T8570] veth0: left allmulticast mode
[  839.814289][ T8570] veth0: left promiscuous mode
[  839.814584][ T8570] br0: port 1(veth0) entered disabled state
[  839.996746][ T8570] bond0: (slave veth1): Releasing backup interface
[  840.140750][ T8570] bond0: (slave veth0): Releasing backup interface
[  840.520088][ T8570] bond0 (unregistering): Released all slaves