[  515.781766] bond0: (slave eth0): making interface the new active one
[  515.781850] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.024077] bond0: (slave eth0): Releasing backup interface
[  520.146322] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.313699] bond0: (slave eth0): Releasing backup interface
[  524.344943] bond0 (unregistering): Released all slaves