[  521.239918] bond0: (slave eth0): making interface the new active one
[  521.240002] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.480414] bond0: (slave eth0): Releasing backup interface
[  525.585754] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.766082] bond0: (slave eth0): Releasing backup interface
[  529.794021] bond0 (unregistering): Released all slaves