[  503.303999] bond0: (slave eth0): making interface the new active one
[  503.304078] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.474344] bond0: (slave eth0): Releasing backup interface
[  507.554464] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.702425] bond0: (slave eth0): Releasing backup interface
[  511.725415] bond0 (unregistering): Released all slaves