[  513.820230] bond0: (slave eth0): making interface the new active one
[  513.820318] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.043736] bond0: (slave eth0): Releasing backup interface
[  518.163677] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.397047] bond0: (slave eth0): Releasing backup interface
[  522.429010] bond0 (unregistering): Released all slaves