[  511.642381] bond0: (slave eth0): making interface the new active one
[  511.642469] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.834568] bond0: (slave eth0): Releasing backup interface
[  515.938650] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.122495] bond0: (slave eth0): Releasing backup interface
[  520.160484] bond0 (unregistering): Released all slaves