[  516.753781] bond0: (slave eth0): making interface the new active one
[  516.753903] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.913566] bond0: (slave eth0): Releasing backup interface
[  520.992733] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.145541] bond0: (slave eth0): Releasing backup interface
[  525.183391] bond0 (unregistering): Released all slaves