[  514.616196] bond0: (slave eth0): making interface the new active one
[  514.616311] bond0: (slave eth0): Enslaving as an active interface with an up link
[  518.805075] bond0: (slave eth0): Releasing backup interface
[  518.880559] bond0: (slave eth0): Enslaving as an active interface with an up link
[  523.031394] bond0: (slave eth0): Releasing backup interface
[  523.063425] bond0 (unregistering): Released all slaves