[  520.796305] bond0: (slave eth0): making interface the new active one
[  520.796382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.955348] bond0: (slave eth0): Releasing backup interface
[  525.039805] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.185673] bond0: (slave eth0): Releasing backup interface
[  529.216277] bond0 (unregistering): Released all slaves