[  515.120559] bond0: (slave eth0): making interface the new active one
[  515.120633] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.325552] bond0: (slave eth0): Releasing backup interface
[  519.452913] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.675047] bond0: (slave eth0): Releasing backup interface
[  523.692951] bond0 (unregistering): Released all slaves