[  516.380177] bond0: (slave eth0): making interface the new active one
[  516.380276] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.600004] bond0: (slave eth0): Releasing backup interface
[  520.688959] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.882036] bond0: (slave eth0): Releasing backup interface
[  524.918980] bond0 (unregistering): Released all slaves