[  504.903631] bond0: (slave eth0): making interface the new active one
[  504.903709] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.086462] bond0: (slave eth0): Releasing backup interface
[  509.158575] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.316564] bond0: (slave eth0): Releasing backup interface
[  513.354683] bond0 (unregistering): Released all slaves