[  519.856529] bond0: (slave eth0): making interface the new active one
[  519.856613] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.059477] bond0: (slave eth0): Releasing backup interface
[  524.186350] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.409180] bond0: (slave eth0): Releasing backup interface
[  528.442041] bond0 (unregistering): Released all slaves