[  516.012923] bond0: (slave eth0): making interface the new active one
[  516.013025] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.217807] bond0: (slave eth0): Releasing backup interface
[  520.332009] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.503042] bond0: (slave eth0): Releasing backup interface
[  524.535906] bond0 (unregistering): Released all slaves