[  520.561741] bond0: (slave eth0): making interface the new active one
[  520.561823] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.746700] bond0: (slave eth0): Releasing backup interface
[  524.807701] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.970003] bond0: (slave eth0): Releasing backup interface
[  528.994957] bond0 (unregistering): Released all slaves