[  516.830229] bond0: (slave eth0): making interface the new active one
[  516.830311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.992012] bond0: (slave eth0): Releasing backup interface
[  521.067008] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.212357] bond0: (slave eth0): Releasing backup interface
[  525.242390] bond0 (unregistering): Released all slaves