[  500.547993] bond0: (slave eth0): making interface the new active one
[  500.548076] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.722038] bond0: (slave eth0): Releasing backup interface
[  504.791718] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.951418] bond0: (slave eth0): Releasing backup interface
[  508.978431] bond0 (unregistering): Released all slaves