[  505.247594] bond0: (slave eth0): making interface the new active one
[  505.247703] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.457608] bond0: (slave eth0): Releasing backup interface
[  509.519193] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.680429] bond0: (slave eth0): Releasing backup interface
[  513.706436] bond0 (unregistering): Released all slaves