[  516.058049] bond0: (slave eth0): making interface the new active one
[  516.058142] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.279489] bond0: (slave eth0): Releasing backup interface
[  520.378913] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.566153] bond0: (slave eth0): Releasing backup interface
[  524.596084] bond0 (unregistering): Released all slaves