[  517.691257] bond0: (slave eth0): making interface the new active one
[  517.691382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.878412] bond0: (slave eth0): Releasing backup interface
[  521.968453] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.164386] bond0: (slave eth0): Releasing backup interface
[  526.189388] bond0 (unregistering): Released all slaves