[ 500.171639] bond0: (slave eth0): making interface the new active one [ 500.171757] bond0: (slave eth0): Enslaving as an active interface with an up link [ 504.333354] bond0: (slave eth0): Releasing backup interface [ 504.406935] bond0: (slave eth0): Enslaving as an active interface with an up link [ 508.561530] bond0: (slave eth0): Releasing backup interface [ 508.593422] bond0 (unregistering): Released all slaves