[  499.933374] bond0: (slave eth0): making interface the new active one
[  499.933487] bond0: (slave eth0): Enslaving as an active interface with an up link
[  504.150385] bond0: (slave eth0): Releasing backup interface
[  504.225488] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.374477] bond0: (slave eth0): Releasing backup interface
[  508.418418] bond0 (unregistering): Released all slaves