[  500.171639] bond0: (slave eth0): making interface the new active one
[  500.171757] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.333354] bond0: (slave eth0): Releasing backup interface
[  504.406935] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.561530] bond0: (slave eth0): Releasing backup interface
[  508.593422] bond0 (unregistering): Released all slaves