[  516.643612] bond0: (slave eth0): making interface the new active one
[  516.643698] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.877951] bond0: (slave eth0): Releasing backup interface
[  520.996398] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.167217] bond0: (slave eth0): Releasing backup interface
[  525.195119] bond0 (unregistering): Released all slaves