[  519.313703] bond0: (slave eth0): making interface the new active one
[  519.313805] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.465816] bond0: (slave eth0): Releasing backup interface
[  523.536135] bond0: (slave eth0): Enslaving as an active interface with an up link
[  527.691889] bond0: (slave eth0): Releasing backup interface
[  527.711858] bond0 (unregistering): Released all slaves