[  500.753714] bond0: (slave eth0): making interface the new active one
[  500.753803] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.989120] bond0: (slave eth0): Releasing backup interface
[  505.106686] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.272216] bond0: (slave eth0): Releasing backup interface
[  509.303205] bond0 (unregistering): Released all slaves