[  504.683225] bond0: (slave eth0): making interface the new active one
[  504.683311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.875713] bond0: (slave eth0): Releasing backup interface
[  508.952072] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.097474] bond0: (slave eth0): Releasing backup interface
[  513.129365] bond0 (unregistering): Released all slaves