[  517.379088] bond0: (slave eth0): making interface the new active one
[  517.379157] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.571661] bond0: (slave eth0): Releasing backup interface
[  521.686492] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.858044] bond0: (slave eth0): Releasing backup interface
[  525.897069] bond0 (unregistering): Released all slaves