Sounds a lot like a proxy arp issue where a device is trying to answer
for all the other devices and clearly on a big network that is not
going to work well.
On 08/01/2010 02:20 PM, Justin Wilson wrote:
If it is bridged a single router plugged in backwords can bring
down the whole network. Some 750's would be a good fix. When I had
HighGain Aps as bridges we would run into this problem as well. I
never figured it out because we eventually went to MT aps.
--
Justin Wilson <j...@mtin.net>
http://www.mtin.net/blog
Wisp Consulting -- Tower Climbing -- Network Support
*From: *Kurt Fankhauser <k...@wavelinc.com>
*Reply-To: *WISPA General List <wireless@wispa.org>
*Date: *Sun, 1 Aug 2010 14:09:29 -0400
*To: *'WISPA General List' <wireless@wispa.org>
*Subject: *Re: [WISPA] I NEED HELP
Forbes,
I remember seeing something similar to this on the list a few months back.
Turned out he guy was running a bridged network and water got into the
Ethernet connector on a Bullet and was causing Layer2 broadcast storms on
the network. Very similar results to what you are reporting.
Kurt Fankhauser
WAVELINC
P.O. Box 126
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com
-----Original Message-----
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Forbes Mercy
Sent: Sunday, August 01, 2010 2:45 AM
To: WISPA General List
Subject: [WISPA] I NEED HELP
This has been a very long day, after a lightning storm we started to
have towers randomly drop for 2-10 minutes with no consistency as to
where, how how long. The tower that was affected by last nights
lightning restarted (locally) so that wasn't it. The outages were so
extensive that at one time we had 17 devices down and five minutes later
65 devices down, 10 minutes later 33, so you see where this is coming
from. I went to the head end and rebooted everything from the core
router on out., changed passwords on the core in case it had been
compromised but show run didn't reveal anything. Oh the other thing,
every computer we have started to say IP address is in use on the
network, no matter what we changed it to, even a subnet we don't yet use
it said it was in use. I had to repair my connection often just to do
work on the network and it would work for a while then again say
duplicate IP. That's why I'm convinced it's traffic.
I started turning Towers back on one at a time and for about 6 towers
there were no drops, I drove to the next junction site to turn more on
but by then the original 6 were dropping, I turned the rest of them on
but by now it's 11PM so traffic was probably lower as it's Sat. Night.
Honestly I don't know what to do, Our Backhauls are all Mikrotik to our
12 towers, WireShark isn't seeing anything unusual, I have icmp packet
drop in the filters. My weekend is basically ruined, what's new in this
business, but if anyone has ideas I've talked to two networking gurus in
town and they both said "geez I don't know you wireless guys have way
bigger networks than we do". sigh.
Thanks,
Forbes
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