[  507.250274] bond0: (slave eth0): making interface the new active one
[  507.250382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.447893] bond0: (slave eth0): Releasing backup interface
[  511.516384] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.677412] bond0: (slave eth0): Releasing backup interface
[  515.719446] bond0 (unregistering): Released all slaves