[  516.404489] bond0: (slave eth0): making interface the new active one
[  516.404585] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.602112] bond0: (slave eth0): Releasing backup interface
[  520.704428] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.890995] bond0: (slave eth0): Releasing backup interface
[  524.926870] bond0 (unregistering): Released all slaves