[  521.634277] bond0: (slave eth0): making interface the new active one
[  521.634372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.851104] bond0: (slave eth0): Releasing backup interface
[  525.934006] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.086361] bond0: (slave eth0): Releasing backup interface
[  530.120347] bond0 (unregistering): Released all slaves