[  516.342365] bond0: (slave eth0): making interface the new active one
[  516.342462] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.530737] bond0: (slave eth0): Releasing backup interface
[  520.612018] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.760486] bond0: (slave eth0): Releasing backup interface
[  524.789516] bond0 (unregistering): Released all slaves