[  521.677949] bond0: (slave eth0): making interface the new active one
[  521.678028] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.913198] bond0: (slave eth0): Releasing backup interface
[  526.015574] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.196984] bond0: (slave eth0): Releasing backup interface
[  530.239942] bond0 (unregistering): Released all slaves