[  517.663516] bond0: (slave eth0): making interface the new active one
[  517.663591] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.878375] bond0: (slave eth0): Releasing backup interface
[  521.964181] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.173503] bond0: (slave eth0): Releasing backup interface
[  526.202561] bond0 (unregistering): Released all slaves