[  512.327385] bond0: (slave eth0): making interface the new active one
[  512.327496] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.497293] bond0: (slave eth0): Releasing backup interface
[  516.587014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.724118] bond0: (slave eth0): Releasing backup interface
[  520.761142] bond0 (unregistering): Released all slaves