[  516.171773] bond0: (slave eth0): making interface the new active one
[  516.171875] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.413483] bond0: (slave eth0): Releasing backup interface
[  520.525250] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.699412] bond0: (slave eth0): Releasing backup interface
[  524.738436] bond0 (unregistering): Released all slaves