[  516.131938] bond0: (slave eth0): making interface the new active one
[  516.132035] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.341622] bond0: (slave eth0): Releasing backup interface
[  520.426220] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.565217] bond0: (slave eth0): Releasing backup interface
[  524.589399] bond0 (unregistering): Released all slaves