[  521.421952] bond0: (slave eth0): making interface the new active one
[  521.422053] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.658249] bond0: (slave eth0): Releasing backup interface
[  525.781348] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.944944] bond0: (slave eth0): Releasing backup interface
[  529.971956] bond0 (unregistering): Released all slaves