[  513.535338] bond0: (slave eth0): making interface the new active one
[  513.535410] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.786833] bond0: (slave eth0): Releasing backup interface
[  517.892553] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.068952] bond0: (slave eth0): Releasing backup interface
[  522.100940] bond0 (unregistering): Released all slaves