[  513.990828] bond0: (slave eth0): making interface the new active one
[  513.990936] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.164530] bond0: (slave eth0): Releasing backup interface
[  518.245102] bond0: (slave eth0): Enslaving as an active interface with an up link
[  522.393362] bond0: (slave eth0): Releasing backup interface
[  522.434339] bond0 (unregistering): Released all slaves