SELECT * FROM
(
    SELECT TOP 10 * FROM
    (
        SELECT TOP 10  rt.route_beg, rt.route_end, n_1.node_name AS node_name_beg, n_2.node_name AS node_name_end, COUNT(rt.route_beg) as grp_count 
FROM vi_route rt 
INNER JOIN vi_nodes n_1 
ON ( rt.net_id = n_1.net_id AND rt.route_beg = n_1.node_id ) INNER JOIN vi_nodes n_2 
ON ( rt.net_id = n_2.net_id AND rt.route_end = n_2.node_id )
WHERE ( n_1.net_id = ? ) ORDER BY node_name_beg ASC
    ) AS foo
    #--  There must be GROUP BY CLAUSE but it's missed! --#
    ORDER BY node_name_beg DESC
) AS bar
ORDER BY node_name_beg ASC
: 'param_value'