[  516.650206] bond0: (slave eth0): making interface the new active one
[  516.650288] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.852437] bond0: (slave eth0): Releasing backup interface
[  520.931942] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.082287] bond0: (slave eth0): Releasing backup interface
[  525.106169] bond0 (unregistering): Released all slaves