[  520.157439] bond0: (slave eth0): making interface the new active one
[  520.157539] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.366361] bond0: (slave eth0): Releasing backup interface
[  524.438659] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.597528] bond0: (slave eth0): Releasing backup interface
[  528.627526] bond0 (unregistering): Released all slaves