[  513.132405] bond0: (slave eth0): making interface the new active one
[  513.132487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.340425] bond0: (slave eth0): Releasing backup interface
[  517.452554] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.620838] bond0: (slave eth0): Releasing backup interface
[  521.650748] bond0 (unregistering): Released all slaves