[  519.259358] bond0: (slave eth0): making interface the new active one
[  519.259421] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.512183] bond0: (slave eth0): Releasing backup interface
[  523.625441] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.793105] bond0: (slave eth0): Releasing backup interface
[  527.830082] bond0 (unregistering): Released all slaves