[  520.115389] bond0: (slave eth0): making interface the new active one
[  520.115484] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.301169] bond0: (slave eth0): Releasing backup interface
[  524.387414] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.533287] bond0: (slave eth0): Releasing backup interface
[  528.561757] bond0 (unregistering): Released all slaves