[  514.678403] bond0: (slave eth0): making interface the new active one
[  514.678490] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.877554] bond0: (slave eth0): Releasing backup interface
[  518.973795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.159945] bond0: (slave eth0): Releasing backup interface
[  523.192841] bond0 (unregistering): Released all slaves