From: Willy Tarreau <w@1wt.eu>
To: david@lang.hm
Cc: Rick Jones <rick.jones2@hp.com>,
David Miller <davem@davemloft.net>,
tim.bird@am.sony.com, r.schwebel@pengutronix.de,
vda.linux@googlemail.com, linux-kernel@vger.kernel.org,
linux-embedded@vger.kernel.org, arjan@linux.intel.com,
kernel@pengutronix.de, netdev@vger.kernel.org
Subject: Re: new ipdelay= option for faster netboot
Date: Tue, 18 Aug 2009 06:56:03 +0200 [thread overview]
Message-ID: <20090818045603.GD11624@1wt.eu> (raw)
In-Reply-To: <alpine.DEB.2.00.0908171942430.30426@asgard.lang.hm>
On Mon, Aug 17, 2009 at 07:45:33PM -0700, david@lang.hm wrote:
> On Mon, 17 Aug 2009, Rick Jones wrote:
>
> >David Miller wrote:
> >>I have card/switch combinations that take up to 10 seconds to
> >>negotiate a proper link.
> >
> >Gotta love it when things adhere to specs...
>
> the default on Cisco switches is to wait 30 seconds before fully enabling
> the port so that it can listen for spanning tree broadcasts.
And this causes a lot of trouble in high availability environments,
because the link is up but unusable. So if you're using it as a primary
bond link you can lose connectivity for that time. Fortunately, you can
configure the port in "switchport mode access", "portfast" mode to avoid
this annoying delay.
Willy
next prev parent reply other threads:[~2009-08-18 4:56 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-14 17:02 New fast(?)-boot results on ARM Robert Schwebel
2009-08-14 18:19 ` Zan Lynx
2009-08-14 18:46 ` Jamie Lokier
2009-08-14 18:58 ` Robert Schwebel
2009-08-14 18:57 ` Robert Schwebel
2009-08-14 21:01 ` Linus Walleij
2009-08-14 21:15 ` Robert Schwebel
2009-08-14 21:35 ` Zan Lynx
2009-08-15 6:21 ` Artem Bityutskiy
2009-08-14 20:04 ` Denys Vlasenko
2009-08-14 20:43 ` Robert Schwebel
2009-08-15 5:59 ` Dirk Behme
2009-08-15 10:35 ` Johannes Stezenbach
2009-08-18 10:06 ` Marco Stornelli
2009-08-18 10:21 ` Robert Schwebel
2009-08-18 10:34 ` Alex Riesen
2009-08-18 10:44 ` Robert Schwebel
2009-08-18 10:48 ` Alex Riesen
2009-08-18 10:53 ` Robert Schwebel
2009-09-04 16:16 ` Wolfram Sang
2009-09-09 14:33 ` Johannes Stezenbach
2009-09-10 0:03 ` Denys Vlasenko
2009-08-17 19:15 ` Tim Bird
2009-08-17 22:35 ` new ipdelay= option for faster netboot (was Re: New fast(?)-boot results on ARM) Tim Bird
2009-08-18 1:03 ` new ipdelay= option for faster netboot David Miller
2009-08-18 1:24 ` Tim Bird
2009-08-18 1:27 ` David Miller
2009-08-18 1:40 ` Tim Bird
2009-08-18 1:56 ` David Miller
2009-08-19 11:57 ` Jamie Lokier
2009-08-18 4:56 ` Denys Vlasenko
2009-08-18 5:00 ` David Miller
2009-08-18 1:31 ` Rick Jones
2009-08-18 2:45 ` david
2009-08-18 4:56 ` Willy Tarreau [this message]
2009-08-15 6:14 ` New fast(?)-boot results on ARM Artem Bityutskiy
2009-08-18 14:06 ` Sascha Hauer
2009-08-18 15:31 ` Dirk Behme
2009-08-18 16:34 ` Marco Stornelli
2009-08-18 18:23 ` Tim Bird
2009-08-19 7:21 ` Sascha Hauer
2009-08-19 16:20 ` Dirk Behme
2009-08-20 8:57 ` Sascha Hauer
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