[  507.534230] bond0: (slave eth0): making interface the new active one
[  507.534321] bond0: (slave eth0): Enslaving as an active interface with an up link
[  511.765108] bond0: (slave eth0): Releasing backup interface
[  511.875541] bond0: (slave eth0): Enslaving as an active interface with an up link
[  516.044982] bond0: (slave eth0): Releasing backup interface
[  516.093885] bond0 (unregistering): Released all slaves