[  498.642428] bond0: (slave eth0): making interface the new active one
[  498.642548] bond0: (slave eth0): Enslaving as an active interface with an up link
[  502.795782] bond0: (slave eth0): Releasing backup interface
[  502.872372] bond0: (slave eth0): Enslaving as an active interface with an up link
[  507.023901] bond0: (slave eth0): Releasing backup interface
[  507.043413] bond0 (unregistering): Released all slaves