[  516.052076] bond0: (slave eth0): making interface the new active one
[  516.052186] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.207472] bond0: (slave eth0): Releasing backup interface
[  520.281537] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.435266] bond0: (slave eth0): Releasing backup interface
[  524.467116] bond0 (unregistering): Released all slaves