+void
+vnet_sw_interface_admin_up (vnet_main_t * vnm, u32 sw_if_index)
+{
+ u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
+ log_debug ("sw_admin_up: sw_if_index %u", sw_if_index);
+
+ if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
+ {
+ flags |= VNET_SW_INTERFACE_FLAG_ADMIN_UP;
+ vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
+ }
+}
+
+void
+vnet_sw_interface_admin_down (vnet_main_t * vnm, u32 sw_if_index)
+{
+ u32 flags = vnet_sw_interface_get_flags (vnm, sw_if_index);
+ log_debug ("sw_admin_down: sw_if_index %u", sw_if_index);
+
+ if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
+ {
+ flags &= ~(VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ vnet_sw_interface_set_flags (vnm, sw_if_index, flags);
+ }
+}
+
+static void
+vnet_if_update_lookup_tables (vnet_main_t *vnm, u32 sw_if_index)
+{
+ vnet_interface_main_t *im = &vnm->interface_main;
+ vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
+
+ vec_validate_init_empty (im->hw_if_index_by_sw_if_index, sw_if_index, ~0);
+ vec_validate_init_empty (im->if_out_arc_end_next_index_by_sw_if_index,
+ sw_if_index, ~0);
+
+ im->hw_if_index_by_sw_if_index[sw_if_index] = hi->hw_if_index;
+ im->if_out_arc_end_next_index_by_sw_if_index[sw_if_index] =
+ hi->if_out_arc_end_node_next_index;
+}
+