[  513.086804] bond0: (slave eth0): making interface the new active one
[  513.086889] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.282411] bond0: (slave eth0): Releasing backup interface
[  517.393944] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.572256] bond0: (slave eth0): Releasing backup interface
[  521.606288] bond0 (unregistering): Released all slaves