[  516.126578] bond0: (slave eth0): making interface the new active one
[  516.126651] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.280978] bond0: (slave eth0): Releasing backup interface
[  520.353200] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.502424] bond0: (slave eth0): Releasing backup interface
[  524.532262] bond0 (unregistering): Released all slaves