[  501.123946] bond0: (slave eth0): making interface the new active one
[  501.124059] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.289470] bond0: (slave eth0): Releasing backup interface
[  505.376208] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.517208] bond0: (slave eth0): Releasing backup interface
[  509.547185] bond0 (unregistering): Released all slaves