[  515.967598] bond0: (slave eth0): making interface the new active one
[  515.967671] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.145408] bond0: (slave eth0): Releasing backup interface
[  520.216673] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.373395] bond0: (slave eth0): Releasing backup interface
[  524.396244] bond0 (unregistering): Released all slaves