[  520.588755] bond0: (slave eth0): making interface the new active one
[  520.588837] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.759134] bond0: (slave eth0): Releasing backup interface
[  524.838406] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.989287] bond0: (slave eth0): Releasing backup interface
[  529.026281] bond0 (unregistering): Released all slaves