[  505.289895] bond0: (slave eth0): making interface the new active one
[  505.290044] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.459776] bond0: (slave eth0): Releasing backup interface
[  509.548316] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.751272] bond0: (slave eth0): Releasing backup interface
[  513.784304] bond0 (unregistering): Released all slaves