[  507.656524] bond0: (slave eth0): making interface the new active one
[  507.656643] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.830183] bond0: (slave eth0): Releasing backup interface
[  511.906372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.058701] bond0: (slave eth0): Releasing backup interface
[  516.101426] bond0 (unregistering): Released all slaves