[  520.301898] bond0: (slave eth0): making interface the new active one
[  520.301968] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.497361] bond0: (slave eth0): Releasing backup interface
[  524.574106] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.715120] bond0: (slave eth0): Releasing backup interface
[  528.739067] bond0 (unregistering): Released all slaves