[  756.705568] 8021q: adding VLAN 0 to HW filter on device bond0
[  756.715788] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  756.727168] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  756.737821] br0: port 1(veth0) entered blocking state
[  756.737897] br0: port 1(veth0) entered disabled state
[  756.737966] veth0: entered allmulticast mode
[  756.738074] veth0: entered promiscuous mode
[  756.749675] br0: port 2(veth1) entered blocking state
[  756.749803] br0: port 2(veth1) entered disabled state
[  756.749889] veth1: entered allmulticast mode
[  756.750007] veth1: entered promiscuous mode
[  756.900906] br0: port 1(veth0) entered blocking state
[  756.901087] br0: port 1(veth0) entered forwarding state
[  756.901254] br0: port 2(veth1) entered blocking state
[  756.901326] br0: port 2(veth1) entered forwarding state
[  758.773872] bond0: (slave veth1): link status definitely up
[  758.773941] bond0: (slave veth1): making interface the new active one
[  758.774019] bond0: active interface up!
[  758.799984] veth1: left allmulticast mode
[  758.800089] veth1: left promiscuous mode
[  758.800146] br0: port 2(veth1) entered disabled state
[  758.800290] veth0: left allmulticast mode
[  758.800382] veth0: left promiscuous mode
[  758.800427] br0: port 1(veth0) entered disabled state
[  758.819210] bond0: (slave veth1): Releasing backup interface
[  758.824087] bond0: (slave veth0): Releasing backup interface
[  758.848116] bond0 (unregistering): Released all slaves