[  515.323913] bond0: (slave eth0): making interface the new active one
[  515.324014] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.585742] bond0: (slave eth0): Releasing backup interface
[  519.689913] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.865684] bond0: (slave eth0): Releasing backup interface
[  523.902636] bond0 (unregistering): Released all slaves