[  517.330119] bond0: (slave eth0): making interface the new active one
[  517.330201] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.480801] bond0: (slave eth0): Releasing backup interface
[  521.550559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.708333] bond0: (slave eth0): Releasing backup interface
[  525.739310] bond0 (unregistering): Released all slaves