[  519.929037] bond0: (slave eth0): making interface the new active one
[  519.929139] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.113456] bond0: (slave eth0): Releasing backup interface
[  524.196632] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.339947] bond0: (slave eth0): Releasing backup interface
[  528.362841] bond0 (unregistering): Released all slaves