[  515.967623] bond0: (slave eth0): making interface the new active one
[  515.967704] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.151386] bond0: (slave eth0): Releasing backup interface
[  520.230434] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.375314] bond0: (slave eth0): Releasing backup interface
[  524.396198] bond0 (unregistering): Released all slaves