From owner-freebsd-current@FreeBSD.ORG  Mon Dec  8 08:46:38 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 6C62716A4CE; Mon,  8 Dec 2003 08:46:38 -0800 (PST)
Received: from mail.sandvine.com (sandvine.com [199.243.201.138])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id CEAB143FF3; Mon,  8 Dec 2003 08:46:27 -0800 (PST)
	(envelope-from don@sandvine.com)
Received: by mail.sandvine.com with Internet Mail Service (5.5.2657.72)
	id <XRT16M9L>; Mon, 8 Dec 2003 11:46:26 -0500
Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337035E409D@mail.sandvine.com>
From: Don Bowman <don@sandvine.com>
To: 'Fred Clift' <fclift@verio.net>,
	Jun Kuriyama <kuriyama@imgsrc.co.jp>
Date: Mon, 8 Dec 2003 11:46:24 -0500 
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2657.72)
Content-Type: text/plain;
	charset="iso-8859-1"
cc: Dan Nelson <dnelson@allantgroup.com>
cc: Current <freebsd-current@freebsd.org>
cc: pdeuskar@freebsd.org
Subject: RE: dev/em: Link is not up until 2 seconds after "ifconfig up"
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Dec 2003 16:46:38 -0000

From: Fred Clift [mailto:fclift@verio.net]
> 
> On Mon, 8 Dec 2003, Jun Kuriyama wrote:
> 
> > At Sun, 7 Dec 2003 20:09:41 -0600,
> >
> > Unfortunately, doing "ifconfig em1 ether 01:02:03:04:05:06" causes 1
> > or 2 seconds "no carrier", too.
> >
> 
> 
> As an additional datapoint - I've noticed that adding aliases 
> causes the
> same kind of delay four our use of the em driver- slows down 
> booting of
> large hosting boxes when you have a script to add each 
> customer one at a
> time and you have 600 :)
> 
> Fred

I wonder if setting WAIT_FOR_AUTO_NEG_DEFAULT to 0 in if_em.h
would help you.

--don