[  520.462880] bond0: (slave eth0): making interface the new active one
[  520.463007] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.619689] bond0: (slave eth0): Releasing backup interface
[  524.689792] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.851193] bond0: (slave eth0): Releasing backup interface
[  528.868952] bond0 (unregistering): Released all slaves