[  501.443772] bond0: (slave eth0): making interface the new active one
[  501.443849] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.619578] bond0: (slave eth0): Releasing backup interface
[  505.712685] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.908771] bond0: (slave eth0): Releasing backup interface
[  509.929651] bond0 (unregistering): Released all slaves