[  517.066271] bond0: (slave eth0): making interface the new active one
[  517.066372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.227155] bond0: (slave eth0): Releasing backup interface
[  521.303288] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.455146] bond0: (slave eth0): Releasing backup interface
[  525.477059] bond0 (unregistering): Released all slaves