[  500.284160] bond0: (slave eth0): making interface the new active one
[  500.284266] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.467414] bond0: (slave eth0): Releasing backup interface
[  504.543690] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.693597] bond0: (slave eth0): Releasing backup interface
[  508.732525] bond0 (unregistering): Released all slaves