[  516.162942] bond0: (slave eth0): making interface the new active one
[  516.163041] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.411480] bond0: (slave eth0): Releasing backup interface
[  520.521960] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.700074] bond0: (slave eth0): Releasing backup interface
[  524.731022] bond0 (unregistering): Released all slaves