[  519.386107] bond0: (slave eth0): making interface the new active one
[  519.386188] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.541637] bond0: (slave eth0): Releasing backup interface
[  523.612001] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.766535] bond0: (slave eth0): Releasing backup interface
[  527.793190] bond0 (unregistering): Released all slaves