[  519.529039] bond0: (slave eth0): making interface the new active one
[  519.529141] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.737175] bond0: (slave eth0): Releasing backup interface
[  523.842891] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.028779] bond0: (slave eth0): Releasing backup interface
[  528.060046] bond0 (unregistering): Released all slaves