[  516.180607] bond0: (slave eth0): making interface the new active one
[  516.180714] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.342912] bond0: (slave eth0): Releasing backup interface
[  520.423859] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.564208] bond0: (slave eth0): Releasing backup interface
[  524.586111] bond0 (unregistering): Released all slaves