[  513.830056] bond0: (slave eth0): making interface the new active one
[  513.830143] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.036378] bond0: (slave eth0): Releasing backup interface
[  518.105845] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.267264] bond0: (slave eth0): Releasing backup interface
[  522.299341] bond0 (unregistering): Released all slaves