@param sw_if_index_to - interface where the traffic is mirrored
@param state - 0 = disabled, 1 = rx enabled, 2 = tx enabled, 3 tx & rx enabled
@param is_l2 - 0 = mirror at hw device level, 1 = mirror at L2
@param sw_if_index_to - interface where the traffic is mirrored
@param state - 0 = disabled, 1 = rx enabled, 2 = tx enabled, 3 tx & rx enabled
@param is_l2 - 0 = mirror at hw device level, 1 = mirror at L2