[  501.008139] bond0: (slave eth0): making interface the new active one
[  501.008268] bond0: (slave eth0): Enslaving as an active interface with an up link
[  505.171540] bond0: (slave eth0): Releasing backup interface
[  505.255123] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.458611] bond0: (slave eth0): Releasing backup interface
[  509.495441] bond0 (unregistering): Released all slaves