[  516.511849] bond0: (slave eth0): making interface the new active one
[  516.511948] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.732115] bond0: (slave eth0): Releasing backup interface
[  520.831044] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.015113] bond0: (slave eth0): Releasing backup interface
[  525.042047] bond0 (unregistering): Released all slaves