[  521.419382] bond0: (slave eth0): making interface the new active one
[  521.419470] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.579474] bond0: (slave eth0): Releasing backup interface
[  525.649092] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.806414] bond0: (slave eth0): Releasing backup interface
[  529.836097] bond0 (unregistering): Released all slaves