[  519.892152] bond0: (slave eth0): making interface the new active one
[  519.892269] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.042684] bond0: (slave eth0): Releasing backup interface
[  524.116131] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.271882] bond0: (slave eth0): Releasing backup interface
[  528.291973] bond0 (unregistering): Released all slaves