[  516.276734] bond0: (slave eth0): making interface the new active one
[  516.276832] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.544300] bond0: (slave eth0): Releasing backup interface
[  520.660049] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.831147] bond0: (slave eth0): Releasing backup interface
[  524.861044] bond0 (unregistering): Released all slaves