[  505.031805] bond0: (slave eth0): making interface the new active one
[  505.031912] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.203406] bond0: (slave eth0): Releasing backup interface
[  509.279571] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.433487] bond0: (slave eth0): Releasing backup interface
[  513.463455] bond0 (unregistering): Released all slaves