diff --git a/core/core.services.yml b/core/core.services.yml
index 0ea69d4..ae52b34 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -172,7 +172,7 @@ services:
       - { name: persist }
   entity.manager:
     class: Drupal\Core\Entity\EntityManager
-    arguments: ['@container.namespaces', '@service_container', '@module_handler', '@cache.cache', '@language_manager', '@string_translation']
+    arguments: ['@container.namespaces', '@service_container', '@module_handler', '@cache.cache', '@language_manager', '@string_translation', '@url_generator']
   plugin.manager.entity:
     alias: entity.manager
   plugin.manager.field.field_type:
diff --git a/core/lib/Drupal/Core/Entity/Annotation/EntityType.php b/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
index 604bf5d..60748c8 100644
--- a/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
+++ b/core/lib/Drupal/Core/Entity/Annotation/EntityType.php
@@ -225,16 +225,11 @@ class EntityType extends Plugin {
   public $bundle_keys;
 
   /**
-   * The base router path for the entity type's field administration page.
-   *
-   * If the entity type has a bundle, include {bundle} in the path.
-   *
-   * For example, the node entity type specifies
-   * "admin/structure/types/manage/{bundle}" as its base field admin path.
+   * The name of the entity type which provides bundles.
    *
    * @var string (optional)
    */
-  public $route_base_path;
+  public $bundle_entity_type;
 
   /**
    * Link templates using the URI template syntax.
diff --git a/core/lib/Drupal/Core/Entity/EntityManager.php b/core/lib/Drupal/Core/Entity/EntityManager.php
index 5fc2d16..cdcd667 100644
--- a/core/lib/Drupal/Core/Entity/EntityManager.php
+++ b/core/lib/Drupal/Core/Entity/EntityManager.php
@@ -18,6 +18,7 @@
 use Drupal\Core\Plugin\Discovery\CacheDecorator;
 use Drupal\Core\Plugin\Discovery\AnnotatedClassDiscovery;
 use Drupal\Core\Plugin\Discovery\InfoHookDecorator;
+use Drupal\Core\Routing\UrlGeneratorInterface;
 use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Core\TypedData\TranslatableInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -106,6 +107,13 @@ class EntityManager extends PluginManagerBase implements EntityManagerInterface
   protected $translationManager;
 
   /**
+   * The url generator.
+   *
+   * @var \Drupal\Core\Routing\UrlGeneratorInterface
+   */
+  protected $urlGenerator;
+
+  /**
    * Static cache of bundle information.
    *
    * @var array
@@ -128,8 +136,11 @@ class EntityManager extends PluginManagerBase implements EntityManagerInterface
    *   The language manager.
    * @param \Drupal\Core\StringTranslation\TranslationInterface $translation_manager
    *   The string translationManager.
+   * @param \Drupal\Core\Routing\UrlGeneratorInterface $url_generator
+   *   The url generator.
+
    */
-  public function __construct(\Traversable $namespaces, ContainerInterface $container, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache, LanguageManager $language_manager, TranslationInterface $translation_manager) {
+  public function __construct(\Traversable $namespaces, ContainerInterface $container, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache, LanguageManager $language_manager, TranslationInterface $translation_manager, UrlGeneratorInterface $url_generator) {
     // Allow the plugin definition to be altered by hook_entity_info_alter().
 
     $this->moduleHandler = $module_handler;
@@ -137,6 +148,7 @@ public function __construct(\Traversable $namespaces, ContainerInterface $contai
     $this->languageManager = $language_manager;
     $this->namespaces = $namespaces;
     $this->translationManager = $translation_manager;
+    $this->urlGenerator = $url_generator;
 
     $this->discovery = new AnnotatedClassDiscovery('Entity', $namespaces, 'Drupal\Core\Entity\Annotation\EntityType');
     $this->discovery = new InfoHookDecorator($this->discovery, 'entity_info');
@@ -301,9 +313,12 @@ public function getAdminPath($entity_type, $bundle) {
     $admin_path = '';
     $entity_info = $this->getDefinition($entity_type);
     // Check for an entity type's admin base path.
-    if (isset($entity_info['route_base_path'])) {
-      // Replace any dynamic 'bundle' portion of the path with the actual bundle.
-      $admin_path = str_replace('{bundle}', $bundle, $entity_info['route_base_path']);
+    if (isset($entity_info['links']['admin-form'])) {
+      $route_parameters = array('bundle' => $bundle);
+      if (isset($entity_info['bundle_entity_type'])) {
+        $route_parameters[$entity_info['bundle_entity_type']] = $bundle;
+      }
+      $admin_path = $this->urlGenerator->getPathFromRoute($entity_info['links']['admin-form'], $route_parameters);
     }
 
     return $admin_path;
diff --git a/core/modules/block/custom_block/lib/Drupal/custom_block/Entity/CustomBlock.php b/core/modules/block/custom_block/lib/Drupal/custom_block/Entity/CustomBlock.php
index a83352b..055bfea 100644
--- a/core/modules/block/custom_block/lib/Drupal/custom_block/Entity/CustomBlock.php
+++ b/core/modules/block/custom_block/lib/Drupal/custom_block/Entity/CustomBlock.php
@@ -36,10 +36,10 @@
  *   admin_permission = "administer blocks",
  *   base_table = "custom_block",
  *   revision_table = "custom_block_revision",
- *   route_base_path = "admin/structure/block/custom-blocks/manage/{bundle}",
  *   links = {
  *     "canonical" = "custom_block.edit",
- *     "edit-form" = "custom_block.edit"
+ *     "edit-form" = "custom_block.edit",
+ *     "admin-form" = "custom_block.type_edit"
  *   },
  *   fieldable = TRUE,
  *   translatable = TRUE,
@@ -52,7 +52,8 @@
  *   },
  *   bundle_keys = {
  *     "bundle" = "type"
- *   }
+ *   },
+ *   bundle_entity_type = "custom_block_type"
  * )
  */
 class CustomBlock extends ContentEntityBase implements CustomBlockInterface {
diff --git a/core/modules/comment/lib/Drupal/comment/Entity/Comment.php b/core/modules/comment/lib/Drupal/comment/Entity/Comment.php
index 4d22fbf..8c5b999 100644
--- a/core/modules/comment/lib/Drupal/comment/Entity/Comment.php
+++ b/core/modules/comment/lib/Drupal/comment/Entity/Comment.php
@@ -36,7 +36,6 @@
  *   fieldable = TRUE,
  *   translatable = TRUE,
  *   render_cache = FALSE,
- *   route_base_path = "admin/structure/comments/manage/{bundle}",
  *   entity_keys = {
  *     "id" = "cid",
  *     "bundle" = "field_id",
@@ -48,7 +47,8 @@
  *   },
  *   links = {
  *     "canonical" = "comment.permalink",
- *     "edit-form" = "comment.edit_page"
+ *     "edit-form" = "comment.edit_page",
+ *     "admin-form" = "comment.bundle"
  *   }
  * )
  */
diff --git a/core/modules/contact/lib/Drupal/contact/Entity/Message.php b/core/modules/contact/lib/Drupal/contact/Entity/Message.php
index 9e424fa..aaaa64e 100644
--- a/core/modules/contact/lib/Drupal/contact/Entity/Message.php
+++ b/core/modules/contact/lib/Drupal/contact/Entity/Message.php
@@ -26,10 +26,13 @@
  *   entity_keys = {
  *     "bundle" = "category"
  *   },
- *   route_base_path = "admin/structure/contact/manage/{bundle}",
+ *   bundle_entity_type = "contact_category",
  *   fieldable = TRUE,
  *   bundle_keys = {
  *     "bundle" = "id"
+ *   },
+ *   links = {
+ *     "admin-form" = "contact.category_edit"
  *   }
  * )
  */
diff --git a/core/modules/field_ui/field_ui.local_tasks.yml b/core/modules/field_ui/field_ui.local_tasks.yml
index e690491..1330c2d 100644
--- a/core/modules/field_ui/field_ui.local_tasks.yml
+++ b/core/modules/field_ui/field_ui.local_tasks.yml
@@ -2,3 +2,6 @@ field_ui.list:
   title: Entities
   route_name: field_ui.list
   tab_root_id: field_ui.list
+field_ui.fields:
+  class: \Drupal\Core\Menu\LocalTaskDefault
+  derivative: \Drupal\field_ui\Plugin\Derivative\FieldUiLocalTask
diff --git a/core/modules/field_ui/field_ui.module b/core/modules/field_ui/field_ui.module
index f9d90c6..340ecad 100644
--- a/core/modules/field_ui/field_ui.module
+++ b/core/modules/field_ui/field_ui.module
@@ -7,6 +7,7 @@
 
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\entity\EntityViewModeInterface;
+use Drupal\field_ui\Plugin\Derivative\FieldUiLocalTask;
 
 /**
  * Implements hook_help().
@@ -61,94 +62,6 @@ function field_ui_menu() {
     'type' => MENU_NORMAL_ITEM,
   );
 
-  // Create tabs for all possible bundles.
-  foreach (entity_get_info() as $entity_type => $entity_info) {
-    if ($entity_info['fieldable'] && isset($entity_info['route_base_path'])) {
-      // Extract path information from the entity type.
-      $path = $entity_info['route_base_path'];
-      $default_path = preg_replace('/{' . DRUPAL_PHP_FUNCTION_PATTERN . '}/', '%', $path);
-      // This is the position of the %field_ui_instance placeholder in the
-      // items below.
-      $field_position = count(explode('/', $path)) + 1;
-
-      $items["$path/fields"] = array(
-        'title' => 'Manage fields',
-        'type' => MENU_LOCAL_TASK,
-        'route_name' => "field_ui.overview_$entity_type",
-        'weight' => 1,
-      );
-      $items["$path/fields/%"] = array(
-        'title callback' => 'entity_page_label',
-        'title arguments' => array($field_position),
-        'route_name' => "field_ui.instance_edit_$entity_type",
-      );
-      $items["$default_path/fields/%/edit"] = array(
-        'title' => 'Edit',
-        'type' => MENU_DEFAULT_LOCAL_TASK,
-      );
-      $items["$path/fields/%/field"] = array(
-        'title' => 'Field settings',
-        'type' => MENU_LOCAL_TASK,
-        'route_name' => "field_ui.field_edit_$entity_type",
-      );
-      $items["$path/fields/%/delete"] = array(
-        'title' => 'Delete',
-        'type' => MENU_VISIBLE_IN_BREADCRUMB,
-        'route_name' => "field_ui.delete_$entity_type",
-        'weight' => 10,
-      );
-
-      // 'Manage form display' tab.
-      $items["$path/form-display"] = array(
-        'title' => 'Manage form display',
-        'type' => MENU_LOCAL_TASK,
-        'route_name' => "field_ui.form_display_overview_$entity_type",
-        'weight' => 2,
-      );
-
-      // 'Manage display' tab.
-      $items["$path/display"] = array(
-        'title' => 'Manage display',
-        'type' => MENU_LOCAL_TASK,
-        'route_name' => "field_ui.display_overview_$entity_type",
-        'weight' => 3,
-      );
-
-      // View and form modes secondary tabs.
-      // The same base $path for the menu item (with a placeholder) can be
-      // used for all bundles of a given entity type; but depending on
-      // administrator settings, each bundle has a different set of view
-      // modes available for customisation. So we define menu items for all
-      // view modes, and use a route requirement to determine which ones are
-      // actually visible for a given bundle.
-      $items["$default_path/form-display/default"] = array(
-        'title' => t('Default'),
-        'type' => MENU_DEFAULT_LOCAL_TASK,
-      );
-      $items["$default_path/display/default"] = array(
-        'title' => t('Default'),
-        'type' => MENU_DEFAULT_LOCAL_TASK,
-      );
-      $weight = 0;
-      foreach (entity_get_form_modes($entity_type) as $form_mode => $form_mode_info) {
-        $items["$path/form-display/$form_mode"] = array(
-          'title' => $form_mode_info['label'],
-          'type' => MENU_LOCAL_TASK,
-          'weight' => $weight++,
-          'route_name' => "field_ui.form_display_overview_$entity_type" . '_' . $form_mode,
-        );
-      }
-      $weight = 0;
-      foreach (entity_get_view_modes($entity_type) as $view_mode => $view_mode_info) {
-        $items["$path/display/$view_mode"] = array(
-          'title' => $view_mode_info['label'],
-          'type' => MENU_LOCAL_TASK,
-          'weight' => $weight++,
-          'route_name' => "field_ui.display_overview_$entity_type" . '_' . $view_mode,
-        );
-      }
-    }
-  }
   return $items;
 }
 
@@ -462,3 +375,11 @@ function theme_field_ui_table($variables) {
   return drupal_render($table);
 }
 
+/**
+ * Implements hook_local_tasks_alter().
+ */
+function field_ui_local_tasks_alter(&$local_tasks) {
+  $container = \Drupal::getContainer();
+  $local_task = FieldUiLocalTask::create($container, 'field_ui.fields');
+  $local_task->alterLocalTasks($local_tasks);
+}
diff --git a/core/modules/field_ui/field_ui.services.yml b/core/modules/field_ui/field_ui.services.yml
index 2ab3051..10752b0 100644
--- a/core/modules/field_ui/field_ui.services.yml
+++ b/core/modules/field_ui/field_ui.services.yml
@@ -1,14 +1,16 @@
 services:
   field_ui.subscriber:
     class: Drupal\field_ui\Routing\RouteSubscriber
-    arguments: ['@entity.manager']
+    arguments: ['@entity.manager', '@router.route_provider']
     tags:
      - { name: event_subscriber }
   access_check.field_ui.view_mode:
     class: Drupal\field_ui\Access\ViewModeAccessCheck
+    arguments: ['@entity.manager']
     tags:
      - { name: access_check }
   access_check.field_ui.form_mode:
     class: Drupal\field_ui\Access\FormModeAccessCheck
+    arguments: ['@entity.manager']
     tags:
      - { name: access_check }
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Access/FormModeAccessCheck.php b/core/modules/field_ui/lib/Drupal/field_ui/Access/FormModeAccessCheck.php
index 92e3790..fb78f36 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Access/FormModeAccessCheck.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Access/FormModeAccessCheck.php
@@ -8,6 +8,7 @@
 namespace Drupal\field_ui\Access;
 
 use Drupal\Core\Access\StaticAccessCheckInterface;
+use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\Routing\Route;
 use Symfony\Component\HttpFoundation\Request;
@@ -18,6 +19,23 @@
 class FormModeAccessCheck implements StaticAccessCheckInterface {
 
   /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * Creates a new FormModeAccessCheck.
+   *
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   */
+  public function __construct(EntityManagerInterface $entity_manager) {
+    $this->entityManager = $entity_manager;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function appliesTo() {
@@ -29,17 +47,19 @@ public function appliesTo() {
    */
   public function access(Route $route, Request $request, AccountInterface $account) {
     if ($entity_type = $request->attributes->get('entity_type')) {
-      $bundle = $request->attributes->get('bundle');
       $form_mode = $request->attributes->get('mode');
 
-      if ($form_mode == 'default') {
-        $visibility = TRUE;
+      if (!($bundle = $request->attributes->get('bundle'))) {
+        $entity_info = $this->entityManager->getDefinition($entity_type);
+        $bundle = $request->attributes->get('_raw_variables')->get($entity_info['bundle_entity_type']);
       }
-      elseif ($entity_form_display = entity_load('entity_form_display', $entity_type . '.' . $bundle . '.' . $form_mode)) {
-        $visibility = $entity_form_display->status();
+
+      $visibility = FALSE;
+      if (!$form_mode || $form_mode == 'default') {
+        $visibility = TRUE;
       }
-      else {
-        $visibility = FALSE;
+      elseif ($entity_display = $this->entityManager->getStorageController('entity_form_display')->load($entity_type . '.' . $bundle . '.' . $form_mode)) {
+        $visibility = $entity_display->status();
       }
 
       if ($visibility) {
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Access/ViewModeAccessCheck.php b/core/modules/field_ui/lib/Drupal/field_ui/Access/ViewModeAccessCheck.php
index 2fe350b..71ef1da 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Access/ViewModeAccessCheck.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Access/ViewModeAccessCheck.php
@@ -8,6 +8,7 @@
 namespace Drupal\field_ui\Access;
 
 use Drupal\Core\Access\StaticAccessCheckInterface;
+use Drupal\Core\Entity\EntityManagerInterface;
 use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\Routing\Route;
 use Symfony\Component\HttpFoundation\Request;
@@ -18,6 +19,23 @@
 class ViewModeAccessCheck implements StaticAccessCheckInterface {
 
   /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * Creates a new ViewModeAccessCheck.
+   *
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   */
+  public function __construct(EntityManagerInterface $entity_manager) {
+    $this->entityManager = $entity_manager;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function appliesTo() {
@@ -29,18 +47,20 @@ public function appliesTo() {
    */
   public function access(Route $route, Request $request, AccountInterface $account) {
     if ($entity_type = $request->attributes->get('entity_type')) {
-      $bundle = $request->attributes->get('bundle');
       $view_mode = $request->attributes->get('mode');
 
-      if ($view_mode == 'default') {
+      if (!($bundle = $request->attributes->get('bundle'))) {
+        $entity_info = $this->entityManager->getDefinition($entity_type);
+        $bundle = $request->attributes->get('_raw_variables')->get($entity_info['bundle_entity_type']);
+      }
+
+      $visibility = FALSE;
+      if (!$view_mode || $view_mode == 'default') {
         $visibility = TRUE;
       }
-      elseif ($entity_display = entity_load('entity_display', $entity_type . '.' . $bundle . '.' . $view_mode)) {
+      elseif ($entity_display = $this->entityManager->getStorageController('entity_display')->load($entity_type . '.' . $bundle . '.' . $view_mode)) {
         $visibility = $entity_display->status();
       }
-      else {
-        $visibility = FALSE;
-      }
 
       if ($visibility) {
         $permission = $route->getRequirement('_field_ui_view_mode_access');
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/OverviewBase.php b/core/modules/field_ui/lib/Drupal/field_ui/OverviewBase.php
index c7db86e..8114efd 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/OverviewBase.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/OverviewBase.php
@@ -77,6 +77,9 @@ public function buildForm(array $form, array &$form_state, $entity_type = NULL,
     $entity_info = $this->entityManager->getDefinition($entity_type);
 
     $this->entity_type = $entity_type;
+    if (!$bundle) {
+      $bundle = $this->getRequest()->attributes->get('_raw_variables')->get($entity_info['bundle_entity_type']);
+    }
     $this->bundle = $bundle;
     $this->adminPath = $this->entityManager->getAdminPath($this->entity_type, $this->bundle);
 
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Plugin/Derivative/FieldUiLocalTask.php b/core/modules/field_ui/lib/Drupal/field_ui/Plugin/Derivative/FieldUiLocalTask.php
new file mode 100644
index 0000000..eb77b7e
--- /dev/null
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Plugin/Derivative/FieldUiLocalTask.php
@@ -0,0 +1,231 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\field_ui\Plugin\Derivative\FieldUiLocalTask.
+ */
+
+namespace Drupal\field_ui\Plugin\Derivative;
+
+use Drupal\Component\Plugin\Derivative\DerivativeBase;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
+use Drupal\Core\Routing\RouteProviderInterface;
+use Drupal\Core\StringTranslation\TranslationInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides local task definitions for all entity bundles.
+ */
+class FieldUiLocalTask extends DerivativeBase implements ContainerDerivativeInterface {
+
+  /**
+   * The route provider.
+   *
+   * @var \Drupal\Core\Routing\RouteProviderInterface
+   */
+  protected $routeProvider;
+
+  /**
+   * The entity manager
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * The translation manager service.
+   *
+   * @var \Drupal\Core\StringTranslation\TranslationInterface
+   */
+  protected $translationManager;
+
+  /**
+   * Creates an FieldUiLocalTask object.
+   *
+   * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
+   *   The route provider.
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation_manager
+   *   The translation manager.
+   */
+  public function __construct(RouteProviderInterface $route_provider, EntityManagerInterface $entity_manager, TranslationInterface $translation_manager) {
+    $this->routeProvider = $route_provider;
+    $this->entityManager = $entity_manager;
+    $this->translationManager = $translation_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, $base_plugin_id) {
+    return new static(
+      $container->get('router.route_provider'),
+      $container->get('entity.manager'),
+      $container->get('string_translation')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDerivativeDefinitions(array $base_plugin_definition) {
+    $this->derivatives = array();
+
+    foreach ($this->entityManager->getDefinitions() as $entity_type => $entity_info) {
+      if ($entity_info['fieldable'] && isset($entity_info['links']['admin-form'])) {
+        $this->derivatives["overview_$entity_type"] = array(
+          'route_name' => "field_ui.overview_$entity_type",
+          'weight' => 1,
+          'title' => $this->t('Manage fields'),
+          'tab_root_id' => "field_ui.fields:overview_$entity_type",
+        );
+
+        // 'Manage form display' tab.
+        $this->derivatives["form_display_overview_$entity_type"] = array(
+          'route_name' => "field_ui.form_display_overview_$entity_type",
+          'weight' => 2,
+          'title' => $this->t('Manage form display'),
+          'tab_root_id' => "field_ui.fields:overview_$entity_type",
+        );
+
+        // 'Manage display' tab.
+        $this->derivatives["display_overview_$entity_type"] = array(
+          'route_name' => "field_ui.display_overview_$entity_type",
+          'weight' => 3,
+          'title' => $this->t('Manage display'),
+          'tab_root_id' => "field_ui.fields:overview_$entity_type",
+        );
+
+        // Field instance edit tab.
+        $this->derivatives["instance_edit_$entity_type"] = array(
+          'route_name' => "field_ui.instance_edit_$entity_type",
+          'title' => $this->t('Edit'),
+          'tab_root_id' => "field_ui.fields:instance_edit_$entity_type",
+        );
+
+        // Field settings tab.
+        $this->derivatives["field_edit_$entity_type"] = array(
+          'route_name' => "field_ui.field_edit_$entity_type",
+          'title' => $this->t('Field settings'),
+          'tab_root_id' => "field_ui.fields:instance_edit_$entity_type",
+        );
+
+        // View and form modes secondary tabs.
+        // The same base $path for the menu item (with a placeholder) can be
+        // used for all bundles of a given entity type; but depending on
+        // administrator settings, each bundle has a different set of view
+        // modes available for customisation. So we define menu items for all
+        // view modes, and use a route requirement to determine which ones are
+        // actually visible for a given bundle.
+        $this->derivatives['field_form_display_default_' . $entity_type] = array(
+          'title' => 'Default',
+          'route_name' => "field_ui.form_display_overview_$entity_type",
+          'tab_root_id' => "field_ui.fields:overview_$entity_type",
+          'tab_parent_id' => "field_ui.fields:form_display_overview_$entity_type",
+        );
+        $this->derivatives['field_display_default_' . $entity_type] = array(
+          'title' => 'Default',
+          'route_name' => "field_ui.display_overview_$entity_type",
+          'tab_root_id' => "field_ui.fields:overview_$entity_type",
+          'tab_parent_id' => "field_ui.fields:display_overview_$entity_type",
+        );
+
+        // One local task for each form mode.
+        $weight = 0;
+        foreach (entity_get_form_modes($entity_type) as $form_mode => $form_mode_info) {
+          $this->derivatives['field_form_display_' . $form_mode . '_' . $entity_type] = array(
+            'title' => $form_mode_info['label'],
+            'route_name' => "field_ui.form_display_overview_$entity_type",
+            'route_parameters' => array(
+              'mode' => $form_mode,
+            ),
+            'tab_root_id' => "field_ui.fields:overview_$entity_type",
+            'tab_parent_id' => "field_ui.fields:form_display_overview_$entity_type",
+            'weight' => $weight++,
+          );
+        }
+
+        // One local task for each view mode.
+        $weight = 0;
+        foreach (entity_get_view_modes($entity_type) as $view_mode => $form_mode_info) {
+          $this->derivatives['field_display_' . $view_mode . '_' . $entity_type] = array(
+            'title' => $form_mode_info['label'],
+            'route_name' => "field_ui.display_overview_$entity_type",
+            'route_parameters' => array(
+              'mode' => $view_mode,
+            ),
+            'tab_root_id' => "field_ui.fields:overview_$entity_type",
+            'tab_parent_id' => "field_ui.fields:display_overview_$entity_type",
+            'weight' => $weight++,
+          );
+        }
+      }
+    }
+
+    foreach ($this->derivatives as &$entry) {
+      $entry += $base_plugin_definition;
+    }
+
+    return $this->derivatives;
+  }
+
+  /**
+   * Alters the tab_root_id definition for field_ui local tasks.
+   */
+  public function alterLocalTasks(&$local_tasks) {
+    foreach ($this->entityManager->getDefinitions() as $entity_type => $entity_info) {
+      if ($entity_info['fieldable'] && isset($entity_info['links']['admin-form'])) {
+        if ($parent_task = $this->getPluginIdFromRoute($entity_info['links']['admin-form'], $local_tasks)) {
+          $local_tasks["field_ui.fields:overview_$entity_type"]['tab_root_id'] = $parent_task;
+          $local_tasks["field_ui.fields:form_display_overview_$entity_type"]['tab_root_id'] = $parent_task;
+          $local_tasks["field_ui.fields:display_overview_$entity_type"]['tab_root_id'] = $parent_task;
+          $local_tasks["field_ui.fields:field_form_display_default_$entity_type"]['tab_root_id'] = $parent_task;
+          $local_tasks["field_ui.fields:field_display_default_$entity_type"]['tab_root_id'] = $parent_task;
+
+          foreach (entity_get_form_modes($entity_type) as $form_mode => $form_mode_info) {
+            $local_tasks['field_ui.fields:field_form_display_' . $form_mode . '_' . $entity_type]['tab_root_id'] = $parent_task;
+          }
+
+          foreach (entity_get_view_modes($entity_type) as $view_mode => $form_mode_info) {
+            $local_tasks['field_ui.fields:field_display_' . $view_mode . '_' . $entity_type]['tab_root_id'] = $parent_task;
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * Finds the local task ID of a route given the route name.
+   *
+   * @param string $route_name
+   *   The route name.
+   * @param array $local_tasks
+   *   An array of all local task definitions.
+   *
+   * @return string|null
+   *   Returns the local task ID of the given route or NULL if none is found.
+   */
+  protected function getPluginIdFromRoute($route_name, &$local_tasks) {
+    $local_task_id = NULL;
+    foreach ($local_tasks as $plugin_id => $local_task) {
+      if ($local_task['route_name'] == $route_name) {
+        $local_task_id = $plugin_id;
+        break;
+      }
+    }
+
+    return $local_task_id;
+  }
+
+  /**
+   * Translates a string to the current language or to a given language.
+   *
+   * See the t() documentation for details.
+   */
+  protected function t($string, array $args = array(), array $options = array()) {
+    return $this->translationManager->translate($string, $args, $options);
+  }
+
+}
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php b/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
index ff49c18..67de1ca 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Routing/RouteSubscriber.php
@@ -8,6 +8,7 @@
 namespace Drupal\field_ui\Routing;
 
 use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\Routing\RouteSubscriberBase;
 use Symfony\Component\Routing\Route;
 use Symfony\Component\Routing\RouteCollection;
@@ -25,13 +26,23 @@ class RouteSubscriber extends RouteSubscriberBase {
   protected $manager;
 
   /**
+   * The route provider.
+   *
+   * @var \Drupal\Core\Routing\RouteProviderInterface
+   */
+  protected $routeProvider;
+
+  /**
    * Constructs a RouteSubscriber object.
    *
    * @param \Drupal\Core\Entity\EntityManagerInterface $manager
    *   The entity type manager.
+   * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
+   *   The route provider.
    */
-  public function __construct(EntityManagerInterface $manager) {
+  public function __construct(EntityManagerInterface $manager, RouteProviderInterface $route_provider) {
     $this->manager = $manager;
+    $this->routeProvider = $route_provider;
   }
 
   /**
@@ -40,8 +51,8 @@ public function __construct(EntityManagerInterface $manager) {
   protected function routes(RouteCollection $collection) {
     foreach ($this->manager->getDefinitions() as $entity_type => $entity_info) {
       $defaults = array();
-      if ($entity_info['fieldable'] && isset($entity_info['route_base_path'])) {
-        $path = $entity_info['route_base_path'];
+      if ($entity_info['fieldable'] && isset($entity_info['links']['admin-form'])) {
+        $path = $this->routeProvider->getRouteByName($entity_info['links']['admin-form'])->getPath();
 
         $route = new Route(
           "$path/fields/{field_instance}",
@@ -80,46 +91,26 @@ protected function routes(RouteCollection $collection) {
         $collection->add("field_ui.overview_$entity_type", $route);
 
         $route = new Route(
-          "$path/form-display",
+          "$path/form-display/{mode}",
           array(
             '_form' => '\Drupal\field_ui\FormDisplayOverview',
             '_title' => 'Manage form display',
+            'mode' => NULL,
           ) + $defaults,
-          array('_permission' => 'administer ' . $entity_type . ' form display')
+          array('_field_ui_form_mode_access' => 'administer ' . $entity_type . ' form display')
         );
         $collection->add("field_ui.form_display_overview_$entity_type", $route);
 
-        foreach (entity_get_form_modes($entity_type) as $form_mode => $form_mode_info) {
-          $route = new Route(
-            "$path/form-display/$form_mode",
-            array(
-              '_form' => '\Drupal\field_ui\FormDisplayOverview',
-              'mode' => $form_mode,
-            ) + $defaults,
-            array('_field_ui_form_mode_access' => 'administer ' . $entity_type . ' form display'));
-          $collection->add("field_ui.form_display_overview_$entity_type" . '_'. $form_mode, $route);
-        }
-
         $route = new Route(
-          "$path/display",
+          "$path/display/{mode}",
           array(
             '_form' => '\Drupal\field_ui\DisplayOverview',
             '_title' => 'Manage display',
+            'mode' => NULL,
           ) + $defaults,
-          array('_permission' => 'administer ' . $entity_type . ' display')
+          array('_field_ui_view_mode_access' => 'administer ' . $entity_type . ' display')
         );
         $collection->add("field_ui.display_overview_$entity_type", $route);
-
-        foreach (entity_get_view_modes($entity_type) as $view_mode => $view_mode_info) {
-          $route = new Route(
-            "$path/display/$view_mode",
-            array(
-              '_form' => '\Drupal\field_ui\DisplayOverview',
-              'mode' => $view_mode,
-            ) + $defaults,
-            array('_field_ui_view_mode_access' => 'administer ' . $entity_type . ' display'));
-          $collection->add("field_ui.display_overview_$entity_type" . '_' . $view_mode, $route);
-        }
       }
     }
   }
diff --git a/core/modules/field_ui/tests/modules/field_ui_test/lib/Drupal/field_ui_test/Entity/FieldUITestNoBundle.php b/core/modules/field_ui/tests/modules/field_ui_test/lib/Drupal/field_ui_test/Entity/FieldUITestNoBundle.php
index e6841c5..ede7799 100644
--- a/core/modules/field_ui/tests/modules/field_ui_test/lib/Drupal/field_ui_test/Entity/FieldUITestNoBundle.php
+++ b/core/modules/field_ui/tests/modules/field_ui_test/lib/Drupal/field_ui_test/Entity/FieldUITestNoBundle.php
@@ -20,8 +20,7 @@
  *   controllers = {
  *     "storage" = "Drupal\Core\Entity\DatabaseStorageController"
  *   },
- *   fieldable = TRUE,
- *   route_base_path = "field-ui-test-no-bundle/manage"
+ *   fieldable = TRUE
  * )
  */
 class FieldUITestNoBundle extends Entity {
diff --git a/core/modules/node/lib/Drupal/node/Entity/Node.php b/core/modules/node/lib/Drupal/node/Entity/Node.php
index f67d15b..dddecb3 100644
--- a/core/modules/node/lib/Drupal/node/Entity/Node.php
+++ b/core/modules/node/lib/Drupal/node/Entity/Node.php
@@ -49,12 +49,13 @@
  *   bundle_keys = {
  *     "bundle" = "type"
  *   },
- *   route_base_path = "admin/structure/types/manage/{bundle}",
+ *   bundle_entity_type = "node_type",
  *   permission_granularity = "bundle",
  *   links = {
  *     "canonical" = "node.view",
  *     "edit-form" = "node.page_edit",
- *     "version-history" = "node.revision_overview"
+ *     "version-history" = "node.revision_overview",
+ *     "admin-form" = "node.type_edit"
  *   }
  * )
  */
diff --git a/core/modules/node/node.local_tasks.yml b/core/modules/node/node.local_tasks.yml
index 24d9ef2..ecf6298 100644
--- a/core/modules/node/node.local_tasks.yml
+++ b/core/modules/node/node.local_tasks.yml
@@ -16,3 +16,7 @@ node.revision_overview:
   tab_root_id: node.view
   title: 'Revisions'
   weight: 20
+node.type_edit:
+  title: 'Edit'
+  route_name: node.type_edit
+  tab_root_id: node.type_edit
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index 438104d..6fcc21e 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -949,16 +949,6 @@ function node_menu() {
     'title' => 'List',
     'type' => MENU_DEFAULT_LOCAL_TASK,
   );
-  $items['admin/structure/types/manage/%node_type'] = array(
-    'title' => 'Edit content type',
-    'title callback' => 'entity_page_label',
-    'title arguments' => array(4),
-    'route_name' => 'node.type_edit',
-  );
-  $items['admin/structure/types/manage/%node_type/edit'] = array(
-    'title' => 'Edit',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
   $items['node/add'] = array(
     'title' => 'Add content',
     'route_name' => 'node.add_page',
diff --git a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTest.php b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTest.php
index 5ba7091..f1dd221 100644
--- a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTest.php
+++ b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTest.php
@@ -37,7 +37,6 @@
  *     "bundle" = "type",
  *     "label" = "name"
  *   },
- *   route_base_path = "admin/structure/entity-test/manage/{bundle}",
  *   links = {
  *     "canonical" = "entity_test.render",
  *     "edit-form" = "entity_test.edit_entity_test"
diff --git a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTestMul.php b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTestMul.php
index c3f9212..7580934 100644
--- a/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTestMul.php
+++ b/core/modules/system/tests/modules/entity_test/lib/Drupal/entity_test/Entity/EntityTestMul.php
@@ -36,7 +36,6 @@
  *     "bundle" = "type",
  *     "label" = "name"
  *   },
- *   route_base_path = "entity_test_mul/structure/{bundle}",
  *   links = {
  *     "canonical" = "entity_test.edit_entity_test_mul",
  *     "edit-form" = "entity_test.edit_entity_test_mul"
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Entity/Term.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Entity/Term.php
index 0b7c3d6..a091d1a 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Entity/Term.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Entity/Term.php
@@ -44,11 +44,12 @@
  *   bundle_keys = {
  *     "bundle" = "vid"
  *   },
+ *   bundle_entity_type = "taxonomy_vocabulary",
  *   links = {
  *     "canonical" = "taxonomy.term_page",
- *     "edit-form" = "taxonomy.term_edit"
+ *     "edit-form" = "taxonomy.term_edit",
+ *     "admin-form" = "taxonomy.overview_terms"
  *   },
- *   route_base_path = "admin/structure/taxonomy/manage/{bundle}",
  *   permission_granularity = "bundle"
  * )
  */
diff --git a/core/modules/user/lib/Drupal/user/Entity/User.php b/core/modules/user/lib/Drupal/user/Entity/User.php
index fe90bfc..c667d20 100644
--- a/core/modules/user/lib/Drupal/user/Entity/User.php
+++ b/core/modules/user/lib/Drupal/user/Entity/User.php
@@ -32,7 +32,6 @@
  *   admin_permission = "administer user",
  *   base_table = "users",
  *   uri_callback = "user_uri",
- *   route_base_path = "admin/config/people/accounts",
  *   label_callback = "user_label",
  *   fieldable = TRUE,
  *   translatable = TRUE,
@@ -42,7 +41,8 @@
  *   },
  *   links = {
  *     "canonical" = "user.view",
- *     "edit-form" = "user.edit"
+ *     "edit-form" = "user.edit",
+ *     "admin-form" = "user.account_settings"
  *   }
  * )
  */