[  505.724352] bond0: (slave eth0): making interface the new active one
[  505.724439] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.906798] bond0: (slave eth0): Releasing backup interface
[  509.979215] bond0: (slave eth0): Enslaving as an active interface with an up link
[  514.129482] bond0: (slave eth0): Releasing backup interface
[  514.148441] bond0 (unregistering): Released all slaves