[  519.614889] bond0: (slave eth0): making interface the new active one
[  519.614973] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.788998] bond0: (slave eth0): Releasing backup interface
[  523.863274] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.017126] bond0: (slave eth0): Releasing backup interface
[  528.043081] bond0 (unregistering): Released all slaves