[  516.966389] bond0: (slave eth0): making interface the new active one
[  516.966482] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.183616] bond0: (slave eth0): Releasing backup interface
[  521.288110] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.470423] bond0: (slave eth0): Releasing backup interface
[  525.494465] bond0 (unregistering): Released all slaves