[  518.402803] bond0: (slave eth0): making interface the new active one
[  518.402897] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.648910] bond0: (slave eth0): Releasing backup interface
[  522.764006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.940006] bond0: (slave eth0): Releasing backup interface
[  526.966972] bond0 (unregistering): Released all slaves