[  516.643638] bond0: (slave eth0): making interface the new active one
[  516.643714] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.861108] bond0: (slave eth0): Releasing backup interface
[  520.975530] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.149090] bond0: (slave eth0): Releasing backup interface
[  525.182014] bond0 (unregistering): Released all slaves