[  517.761276] bond0: (slave eth0): making interface the new active one
[  517.761350] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.940063] bond0: (slave eth0): Releasing backup interface
[  522.011341] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.168417] bond0: (slave eth0): Releasing backup interface
[  526.194315] bond0 (unregistering): Released all slaves