[  520.458151] bond0: (slave eth0): making interface the new active one
[  520.458293] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.618787] bond0: (slave eth0): Releasing backup interface
[  524.684303] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.845740] bond0: (slave eth0): Releasing backup interface
[  528.871365] bond0 (unregistering): Released all slaves