[  520.594858] bond0: (slave eth0): making interface the new active one
[  520.594946] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.747392] bond0: (slave eth0): Releasing backup interface
[  524.812397] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.973075] bond0: (slave eth0): Releasing backup interface
[  528.999981] bond0 (unregistering): Released all slaves