diff --git a/img/spanningtree/portroles.jpg b/img/spanningtree/portroles.jpg index 425a581..0d69f22 100644 Binary files a/img/spanningtree/portroles.jpg and b/img/spanningtree/portroles.jpg differ diff --git a/img/spanningtree/portstates.jpg b/img/spanningtree/portstates.jpg new file mode 100644 index 0000000..d47a8f0 Binary files /dev/null and b/img/spanningtree/portstates.jpg differ