[  517.087575] bond0: (slave eth0): making interface the new active one
[  517.087684] bond0: (slave eth0): Enslaving as an active interface with an up link
[  521.304173] bond0: (slave eth0): Releasing backup interface
[  521.400982] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.594016] bond0: (slave eth0): Releasing backup interface
[  525.612964] bond0 (unregistering): Released all slaves