[  516.691067] bond0: (slave eth0): making interface the new active one
[  516.691172] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.850832] bond0: (slave eth0): Releasing backup interface
[  520.927179] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.082350] bond0: (slave eth0): Releasing backup interface
[  525.113332] bond0 (unregistering): Released all slaves