[  521.926923] bond0: (slave eth0): making interface the new active one
[  521.927008] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.094507] bond0: (slave eth0): Releasing backup interface
[  526.161920] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.321571] bond0: (slave eth0): Releasing backup interface
[  530.354457] bond0 (unregistering): Released all slaves