diff --git a/src/vnet/span/span.api b/src/vnet/span/span.api
index 8cbac7b..7b2e47c 100644
--- a/src/vnet/span/span.api
+++ b/src/vnet/span/span.api
@@ -49,10 +49,12 @@
     @param sw_if_index_from - mirorred interface
     @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 = mirrored at hw device level, 1 = mirrored at l2
 */
 define sw_interface_span_details {
     u32 context;
     u32 sw_if_index_from;
     u32 sw_if_index_to;
     u8 state;
+    u8 is_l2;
 };
diff --git a/src/vnet/span/span_api.c b/src/vnet/span/span_api.c
index 5df93fa..f96d267 100644
--- a/src/vnet/span/span_api.c
+++ b/src/vnet/span/span_api.c
@@ -97,6 +97,7 @@
           rmp->sw_if_index_to = htonl (i);
           rmp->state = (u8) (clib_bitmap_get (rxm->mirror_ports, i) +
                              clib_bitmap_get (txm->mirror_ports, i) * 2);
+	  rmp->is_l2 = mp->is_l2;
 
           vl_api_send_msg (reg, (u8 *) rmp);
         }));