[  516.204949] bond0: (slave eth0): making interface the new active one
[  516.205048] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.395144] bond0: (slave eth0): Releasing backup interface
[  520.461743] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.617336] bond0: (slave eth0): Releasing backup interface
[  524.640261] bond0 (unregistering): Released all slaves