'news' => array(
            'type' => 'Segment',
            'options' => array(
                'route' => '/news[/:id]',
                'constraints' => array(
                    'id'    => '[0-9]+',
                    ),
                'defaults' => array(
                    'controller' => 'ApplicationControllerNews',
                    'action' => 'index',
                    ),
            ),
            'may_terminate' => true,
            'child_routes' => array(
                'allnews' => array(
                    'type' => 'Segment',
                    'options' => array(
                        'route' => '[/:action[/:tab[/:page]]]',
                        'constraints' => array(
                            'action' => '[a-zA-Z][a-zA-Z0-9_-]*',
                            'tab'    => '[0-9]+',
                            'page'     => '[0-9]+',
                        ),
                        'defaults' => array(
                            'controller' => 'ApplicationControllerNews',
                            'action' => 'all',
                            'tab' => 1,
                            'page' => 1,
                        ),

                    ),
                ),
            ),
        ),

/news/2

/news/all/2/5

$this->url('news/allnews', array('action' => 'all', 'tab' => '1', 'page' => '1'))