[  516.575120] bond0: (slave eth0): making interface the new active one
[  516.575199] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.780014] bond0: (slave eth0): Releasing backup interface
[  520.853919] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.005807] bond0: (slave eth0): Releasing backup interface
[  525.037610] bond0 (unregistering): Released all slaves