[  516.215514] bond0: (slave eth0): making interface the new active one
[  516.215603] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.446787] bond0: (slave eth0): Releasing backup interface
[  520.553637] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.728441] bond0: (slave eth0): Releasing backup interface
[  524.767397] bond0 (unregistering): Released all slaves