Date: 24 Nov 1996 00:17:54 -0800 From: pete@news.interworld.net (Peter Carah) To: freebsd-isp@freebsd.org Subject: Re: Decision in Router Purchase Message-ID: <5790bi$8fj@news.interworld.net> References: <199611141724.LAA25419@brasil.moneng.mei.com>
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In article <199611141724.LAA25419@brasil.moneng.mei.com>,
Joe Greco <jgreco@brasil.moneng.mei.com> wrote:
>
>> On Wed, 13 Nov 1996, Veggy Vinny wrote:
.......
>> Go with the cisco! There is something just a bit off with freebsd's
>> tcp/ip. I have a subgroup of users who get stalls, if my freebsd's are
>> not the other side of my cisco from them. For instance, if they were to
>> pull headers from a new server on the same subnet, the news server being
>> freebsd, it would stop.. Same with web pages.
>
>One of my clients is an ISP with well over a thousand (local) lines,
>they have not reported any such problems to me... the news servers
>are FreeBSD.
>Just a data point,
For another data point, we had a somewhat similar problem that
turned out to have been caused by a bad ethernet hub. I'd suspect
that a lot of tcp/ip problems are really bad ethernet configurations
(too many cascaded hubs, bad hubs, bad wire, etc etc...)
All of our hosts are either freebsd or macs (all using the newer
open-transport except for one).
BTW, it was a BEAR to find... Main symptom was out-of-sequence
tcp retry packets, there was not any obvious excess of collisions
either detected or not ("late collision" is often one not detected
by the hub. I don't know if any of the freebsd drivers give that
report.).
My only problems with Bay AN routers is that they won't take enough
ram to do a full 2-carrier peering anymore. I suspect that a 2501 won't
either... Doesn't help that the backbone carriers are bickering over
direct-peering with each other and that 2 of the biggest now refuse to
transit :-( *THAT* wasn't anywhere in the "vision" of the internet...
(fixes things up so that our cooperative backup arrangement with another
similar-sized isp (2 T1's vs 1 T1 and a 10mb connection) doesn't work
because one of the T1 carriers won't accept our bgp routes to the other isp.
so much for backup :-(
-- Pete
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