[  511.753965] bond0: (slave eth0): making interface the new active one
[  511.754051] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.992964] bond0: (slave eth0): Releasing backup interface
[  516.110080] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.280082] bond0: (slave eth0): Releasing backup interface
[  520.315028] bond0 (unregistering): Released all slaves