[  504.981092] bond0: (slave eth0): making interface the new active one
[  504.981170] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.139839] bond0: (slave eth0): Releasing backup interface
[  509.212365] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.366485] bond0: (slave eth0): Releasing backup interface
[  513.392425] bond0 (unregistering): Released all slaves