[  516.354059] bond0: (slave eth0): making interface the new active one
[  516.354155] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.609247] bond0: (slave eth0): Releasing backup interface
[  520.721926] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.887940] bond0: (slave eth0): Releasing backup interface
[  524.924906] bond0 (unregistering): Released all slaves