[  500.922167] bond0: (slave eth0): making interface the new active one
[  500.922239] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.104405] bond0: (slave eth0): Releasing backup interface
[  505.185311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.326762] bond0: (slave eth0): Releasing backup interface
[  509.352975] bond0 (unregistering): Released all slaves