[  521.575333] bond0: (slave eth0): making interface the new active one
[  521.575480] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.772682] bond0: (slave eth0): Releasing backup interface
[  525.843574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.002405] bond0: (slave eth0): Releasing backup interface
[  530.039635] bond0 (unregistering): Released all slaves