[  516.977316] bond0: (slave eth0): making interface the new active one
[  516.977436] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.173034] bond0: (slave eth0): Releasing backup interface
[  521.255272] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.393120] bond0: (slave eth0): Releasing backup interface
[  525.415069] bond0 (unregistering): Released all slaves