[  516.933031] bond0: (slave eth0): making interface the new active one
[  516.933100] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.184291] bond0: (slave eth0): Releasing backup interface
[  521.304315] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.464247] bond0: (slave eth0): Releasing backup interface
[  525.486156] bond0 (unregistering): Released all slaves