[  505.042254] bond0: (slave eth0): making interface the new active one
[  505.042639] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.271081] bond0: (slave eth0): Releasing backup interface
[  509.361390] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.558359] bond0: (slave eth0): Releasing backup interface
[  513.579422] bond0 (unregistering): Released all slaves