[  516.528310] bond0: (slave eth0): making interface the new active one
[  516.528414] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.724995] bond0: (slave eth0): Releasing backup interface
[  520.808016] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.948196] bond0: (slave eth0): Releasing backup interface
[  524.976151] bond0 (unregistering): Released all slaves