[  514.546585] bond0: (slave eth0): making interface the new active one
[  514.546716] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.811807] bond0: (slave eth0): Releasing backup interface
[  518.927495] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.095055] bond0: (slave eth0): Releasing backup interface
[  523.120975] bond0 (unregistering): Released all slaves