while($perform_step > 0)
{
    if ($tcp_transx_param{$row_ref->[$i]}{$perform_step})
    {
        logtext "Value of step is $perform_step";
        logtext "Sending =>$tcp_transx_param{$row_ref->[$i]}{$perform_step}{send}<=";
        $session->send("$tcp_transx_param{$row_ref->[$i]}{$perform_step}{send}\r");
        $session->expect($expect_timeout, '-re', "$tcp_transx_param{$row_ref->[$i]}{$perform_step}{expect}") || warn "Did not match at step $perform_step for CollectionID $row_ref->[$i]" . $session -> exp_error();
        logtext "Expecting =>$tcp_transx_param{$row_ref->[$i]}{$perform_step}{expect}<=";
        if ($session->exp_error())
        {
            logtext "ERROR=>" . $session->exp_error();
            logtext "Closing Session";
            $session->hard_close();
            last;
        }
        else { $perform_step++; }
    }
    else
    {
        $perform_step=0;
        $session->soft_close();
        last;
    }
    logtext "Increasing my step to $perform_step";
}