[  516.681039] bond0: (slave eth0): making interface the new active one
[  516.681106] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.848987] bond0: (slave eth0): Releasing backup interface
[  520.915386] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.073239] bond0: (slave eth0): Releasing backup interface
[  525.110147] bond0 (unregistering): Released all slaves