[  503.921422] bond0: (slave eth0): making interface the new active one
[  503.921565] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.109900] bond0: (slave eth0): Releasing backup interface
[  508.176391] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.337366] bond0: (slave eth0): Releasing backup interface
[  512.381228] bond0 (unregistering): Released all slaves