[  521.236029] bond0: (slave eth0): making interface the new active one
[  521.236148] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.459991] bond0: (slave eth0): Releasing backup interface
[  525.544366] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.691431] bond0: (slave eth0): Releasing backup interface
[  529.720251] bond0 (unregistering): Released all slaves