[  502.966632] bond0: (slave eth0): making interface the new active one
[  502.966703] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.155198] bond0: (slave eth0): Releasing backup interface
[  507.248368] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.439765] bond0: (slave eth0): Releasing backup interface
[  511.473748] bond0 (unregistering): Released all slaves