[  520.371300] bond0: (slave eth0): making interface the new active one
[  520.371370] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.555213] bond0: (slave eth0): Releasing backup interface
[  524.632269] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.783445] bond0: (slave eth0): Releasing backup interface
[  528.811295] bond0 (unregistering): Released all slaves