[  521.152154] bond0: (slave eth0): making interface the new active one
[  521.152243] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.325367] bond0: (slave eth0): Releasing backup interface
[  525.389827] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.546529] bond0: (slave eth0): Releasing backup interface
[  529.569489] bond0 (unregistering): Released all slaves