[  515.967640] bond0: (slave eth0): making interface the new active one
[  515.967711] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.133388] bond0: (slave eth0): Releasing backup interface
[  520.204123] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.365184] bond0: (slave eth0): Releasing backup interface
[  524.399149] bond0 (unregistering): Released all slaves