[  517.241243] bond0: (slave eth0): making interface the new active one
[  517.241331] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.439410] bond0: (slave eth0): Releasing backup interface
[  521.549043] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.725180] bond0: (slave eth0): Releasing backup interface
[  525.748985] bond0 (unregistering): Released all slaves