[  517.478167] bond0: (slave eth0): making interface the new active one
[  517.478238] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.681334] bond0: (slave eth0): Releasing backup interface
[  521.761482] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.900464] bond0: (slave eth0): Releasing backup interface
[  525.930310] bond0 (unregistering): Released all slaves