[  521.273222] bond0: (slave eth0): making interface the new active one
[  521.273316] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.535533] bond0: (slave eth0): Releasing backup interface
[  525.643931] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.810948] bond0: (slave eth0): Releasing backup interface
[  529.841899] bond0 (unregistering): Released all slaves