[  517.172818] bond0: (slave eth0): making interface the new active one
[  517.172911] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.376533] bond0: (slave eth0): Releasing backup interface
[  521.513413] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.722119] bond0: (slave eth0): Releasing backup interface
[  525.758046] bond0 (unregistering): Released all slaves