[  521.015426] bond0: (slave eth0): making interface the new active one
[  521.015510] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.212738] bond0: (slave eth0): Releasing backup interface
[  525.319198] bond0: (slave eth0): Enslaving as an active interface with an up link
[  529.499129] bond0: (slave eth0): Releasing backup interface
[  529.527048] bond0 (unregistering): Released all slaves