[  505.038774] bond0: (slave eth0): making interface the new active one
[  505.038899] bond0: (slave eth0): Enslaving as an active interface with an up link
[  509.196827] bond0: (slave eth0): Releasing backup interface
[  509.278719] bond0: (slave eth0): Enslaving as an active interface with an up link
[  513.425274] bond0: (slave eth0): Releasing backup interface
[  513.454250] bond0 (unregistering): Released all slaves