+static void
+vlib_node_add_to_sibling_bitmap (vlib_main_t *vm, vlib_node_t *n,
+ vlib_node_t *sib)
+{
+ vlib_node_main_t *nm = &vm->node_main;
+ u32 si;
+
+ clib_bitmap_foreach (si, sib->sibling_bitmap)
+ {
+ vlib_node_t *m = vec_elt (nm->nodes, si);
+
+ /* Connect all of sibling's siblings to us. */
+ m->sibling_bitmap = clib_bitmap_ori (m->sibling_bitmap, n->index);
+
+ /* Connect us to all of sibling's siblings. */
+ n->sibling_bitmap = clib_bitmap_ori (n->sibling_bitmap, si);
+ }
+
+ /* Connect sibling to us. */
+ sib->sibling_bitmap = clib_bitmap_ori (sib->sibling_bitmap, n->index);
+
+ /* Connect us to sibling. */
+ n->sibling_bitmap = clib_bitmap_ori (n->sibling_bitmap, sib->index);
+}
+