[  516.015412] bond0: (slave eth0): making interface the new active one
[  516.015499] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.218702] bond0: (slave eth0): Releasing backup interface
[  520.331847] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.510031] bond0: (slave eth0): Releasing backup interface
[  524.534896] bond0 (unregistering): Released all slaves