>From /usr/src/linux-2.4/Documentation/Configure.help:
TCP Explicit Congestion Notification support
CONFIG_INET_ECN
Explicit Congestion Notification (ECN) allows routers to notify
clients about network congestion, resulting in fewer dropped packets
and increased network performance. This option adds ECN support to the
Linux kernel, as well as a sysctl (/proc/sys/net/ipv4/tcp_ecn) which
allows ECN support to be disabled at runtime.
Note that, on the Internet, there are many broken firewalls which
refuse connections from ECN-enabled machines, and it may be a while
before these firewalls are fixed. Until then, to access a site behind
such a firewall (some of which are major sites, at the time of this
writing) you will have to disable this option, either by saying N now
or by using the sysctl.
If in doubt, say N.
> -----Original Message-----
> From: Aaron Konstam [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 24, 2001 10:32 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Semi-OT] Web pages time out
>
>
> On Tue, Jul 24, 2001 at 11:55:57AM -0500,
> [EMAIL PROTECTED] wrote:
> > On 24-Jul-2001 Taylor, ForrestX wrote:
> > > Might this be the Explicit Congestion Notification (ECN) problem?
> > >
> > >#cat /proc/sys/net/ipv4/tcp_ecn
> > > 0
> > >#
> > >
> > > If it is 1, change it to 0.
> >
> > YES! That's it! You get the prize, Forrest. Thanks very
> much. Now that I think
> > about it, this problem started a couple of weeks ago when I
> installed the 2.4.5
> > kernel. I should have realized it was ecn.
> >
> Could anyone explain ecn?
> --
> -------------------------------------------
> Aaron Konstam
> Computer Science
> Trinity University
> 715 Stadium Dr.
> San Antonio, TX 78212-7200
>
> telephone: (210)-999-7484
> email:[EMAIL PROTECTED]
>
>
>
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