[  516.153202] bond0: (slave eth0): making interface the new active one
[  516.153299] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.415615] bond0: (slave eth0): Releasing backup interface
[  520.528145] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.702105] bond0: (slave eth0): Releasing backup interface
[  524.745966] bond0 (unregistering): Released all slaves