[  507.741391] bond0: (slave eth0): making interface the new active one
[  507.741468] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.947095] bond0: (slave eth0): Releasing backup interface
[  512.037755] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.171614] bond0: (slave eth0): Releasing backup interface
[  516.204565] bond0 (unregistering): Released all slaves