[  521.568792] bond0: (slave eth0): making interface the new active one
[  521.568885] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.770363] bond0: (slave eth0): Releasing backup interface
[  525.836172] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.000105] bond0: (slave eth0): Releasing backup interface
[  530.032110] bond0 (unregistering): Released all slaves