[  517.085038] bond0: (slave eth0): making interface the new active one
[  517.085123] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.294610] bond0: (slave eth0): Releasing backup interface
[  521.355098] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.522257] bond0: (slave eth0): Releasing backup interface
[  525.555276] bond0 (unregistering): Released all slaves