[  521.348336] bond0: (slave eth0): making interface the new active one
[  521.348430] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.518556] bond0: (slave eth0): Releasing backup interface
[  525.591161] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.746712] bond0: (slave eth0): Releasing backup interface
[  529.779965] bond0 (unregistering): Released all slaves