[  756.427328] 8021q: adding VLAN 0 to HW filter on device bond0
[  756.437329] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  756.447900] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  756.457394] br0: port 1(veth0) entered blocking state
[  756.457454] br0: port 1(veth0) entered disabled state
[  756.457521] veth0: entered allmulticast mode
[  756.457604] veth0: entered promiscuous mode
[  756.468282] br0: port 2(veth1) entered blocking state
[  756.468379] br0: port 2(veth1) entered disabled state
[  756.468484] veth1: entered allmulticast mode
[  756.468600] veth1: entered promiscuous mode
[  756.776550] br0: port 1(veth0) entered blocking state
[  756.776628] br0: port 1(veth0) entered forwarding state
[  756.776706] br0: port 2(veth1) entered blocking state
[  756.776748] br0: port 2(veth1) entered forwarding state
[  758.456558] bond0: (slave veth1): link status definitely up
[  758.456683] bond0: (slave veth1): making interface the new active one
[  758.456791] bond0: active interface up!
[  758.523117] veth1: left allmulticast mode
[  758.523186] veth1: left promiscuous mode
[  758.523238] br0: port 2(veth1) entered disabled state
[  758.523364] veth0: left allmulticast mode
[  758.523407] veth0: left promiscuous mode
[  758.523442] br0: port 1(veth0) entered disabled state
[  758.540090] bond0: (slave veth1): Releasing backup interface
[  758.542712] bond0: (slave veth0): Releasing backup interface