+ if ((old_next_index = node->next_nodes[slot]) != ~0u)
+ {
+ hash_unset (node->next_slot_by_node, old_next_index);
+ old_next = vlib_get_node (vm, old_next_index);
+ old_next->prev_node_bitmap =
+ clib_bitmap_andnoti (old_next->prev_node_bitmap, node_index);
+ }
+