[  516.385209] bond0: (slave eth0): making interface the new active one
[  516.385313] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.537076] bond0: (slave eth0): Releasing backup interface
[  520.618025] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.760273] bond0: (slave eth0): Releasing backup interface
[  524.792237] bond0 (unregistering): Released all slaves