[  521.347474] bond0: (slave eth0): making interface the new active one
[  521.347569] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.608219] bond0: (slave eth0): Releasing backup interface
[  525.712547] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.891988] bond0: (slave eth0): Releasing backup interface
[  529.917888] bond0 (unregistering): Released all slaves