[  517.005928] bond0: (slave eth0): making interface the new active one
[  517.006005] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.161000] bond0: (slave eth0): Releasing backup interface
[  521.230076] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.384709] bond0: (slave eth0): Releasing backup interface
[  525.420662] bond0 (unregistering): Released all slaves