[  519.817225] bond0: (slave eth0): making interface the new active one
[  519.817313] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.977183] bond0: (slave eth0): Releasing backup interface
[  524.048098] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.204397] bond0: (slave eth0): Releasing backup interface
[  528.229438] bond0 (unregistering): Released all slaves