[  515.923939] bond0: (slave eth0): making interface the new active one
[  515.924029] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.154936] bond0: (slave eth0): Releasing backup interface
[  520.268017] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.435035] bond0: (slave eth0): Releasing backup interface
[  524.459979] bond0 (unregistering): Released all slaves