[  520.385866] bond0: (slave eth0): making interface the new active one
[  520.385979] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.556917] bond0: (slave eth0): Releasing backup interface
[  524.615665] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.787578] bond0: (slave eth0): Releasing backup interface
[  528.816556] bond0 (unregistering): Released all slaves