[  513.699984] bond0: (slave eth0): making interface the new active one
[  513.700080] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.922392] bond0: (slave eth0): Releasing backup interface
[  518.050266] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.259097] bond0: (slave eth0): Releasing backup interface
[  522.298022] bond0 (unregistering): Released all slaves