[  517.375421] bond0: (slave eth0): making interface the new active one
[  517.375503] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.558473] bond0: (slave eth0): Releasing backup interface
[  521.641290] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.791059] bond0: (slave eth0): Releasing backup interface
[  525.825449] bond0 (unregistering): Released all slaves