[  837.982496] 8021q: adding VLAN 0 to HW filter on device bond0
[  837.986204] bond0: (slave veth0): Enslaving as a backup interface with a down link
[  837.989916] bond0: (slave veth1): Enslaving as a backup interface with a down link
[  837.993496] br0: port 1(veth0) entered blocking state
[  837.993528] br0: port 1(veth0) entered disabled state
[  837.993561] veth0: entered allmulticast mode
[  837.993611] veth0: entered promiscuous mode
[  837.997493] br0: port 2(veth1) entered blocking state
[  837.997529] br0: port 2(veth1) entered disabled state
[  837.997562] veth1: entered allmulticast mode
[  837.997620] veth1: entered promiscuous mode
[  839.038981] br0: port 1(veth0) entered blocking state
[  839.039039] br0: port 1(veth0) entered forwarding state
[  839.039091] br0: port 2(veth1) entered blocking state
[  839.039119] br0: port 2(veth1) entered forwarding state
[  840.061948] bond0: (slave veth1): link status definitely up
[  840.062037] bond0: (slave veth1): making interface the new active one
[  840.062090] bond0: active interface up!
[  840.171671] veth1: left allmulticast mode
[  840.171718] veth1: left promiscuous mode
[  840.171758] br0: port 2(veth1) entered disabled state
[  840.171902] veth0: left allmulticast mode
[  840.171937] veth0: left promiscuous mode
[  840.171966] br0: port 1(veth0) entered disabled state
[  840.181144] bond0: (slave veth1): Releasing backup interface
[  840.186057] bond0: (slave veth0): Releasing backup interface
[  840.215971] bond0 (unregistering): Released all slaves