[  516.541538] bond0: (slave eth0): making interface the new active one
[  516.541612] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.720068] bond0: (slave eth0): Releasing backup interface
[  520.794561] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.948327] bond0: (slave eth0): Releasing backup interface
[  524.977373] bond0 (unregistering): Released all slaves