[  519.739838] bond0: (slave eth0): making interface the new active one
[  519.739932] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.927817] bond0: (slave eth0): Releasing backup interface
[  524.033321] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.215047] bond0: (slave eth0): Releasing backup interface
[  528.255036] bond0 (unregistering): Released all slaves