[  516.460514] bond0: (slave eth0): making interface the new active one
[  516.460590] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.677525] bond0: (slave eth0): Releasing backup interface
[  520.774476] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.967033] bond0: (slave eth0): Releasing backup interface
[  524.987948] bond0 (unregistering): Released all slaves