[  505.339142] bond0: (slave eth0): making interface the new active one
[  505.339233] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.525900] bond0: (slave eth0): Releasing backup interface
[  509.634198] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.817924] bond0: (slave eth0): Releasing backup interface
[  513.842868] bond0 (unregistering): Released all slaves