[  514.270115] bond0: (slave eth0): making interface the new active one
[  514.270179] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.489903] bond0: (slave eth0): Releasing backup interface
[  518.601091] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.773119] bond0: (slave eth0): Releasing backup interface
[  522.807626] bond0 (unregistering): Released all slaves