[  521.160256] bond0: (slave eth0): making interface the new active one
[  521.160353] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.392872] bond0: (slave eth0): Releasing backup interface
[  525.494944] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.681699] bond0: (slave eth0): Releasing backup interface
[  529.717721] bond0 (unregistering): Released all slaves