[  517.596803] bond0: (slave eth0): making interface the new active one
[  517.596902] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.824338] bond0: (slave eth0): Releasing backup interface
[  521.947391] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.176054] bond0: (slave eth0): Releasing backup interface
[  526.217018] bond0 (unregistering): Released all slaves