[  513.197583] bond0: (slave eth0): making interface the new active one
[  513.197651] bond0: (slave eth0): Enslaving as an active interface with an up link
[  517.406484] bond0: (slave eth0): Releasing backup interface
[  517.522088] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.693171] bond0: (slave eth0): Releasing backup interface
[  521.721972] bond0 (unregistering): Released all slaves