[  516.944135] bond0: (slave eth0): making interface the new active one
[  516.944242] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.114118] bond0: (slave eth0): Releasing backup interface
[  521.194795] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.342290] bond0: (slave eth0): Releasing backup interface
[  525.373405] bond0 (unregistering): Released all slaves