[8844] in North American Network Operators' Group
RE: 7007: FROM THE HORSE'S MOUTH
daemon@ATHENA.MIT.EDU (Dave Van Allen)
Fri Apr 25 18:16:48 1997
From: Dave Van Allen <dave@fast.net>
To: "'Avi Freedman'" <freedman@netaxs.com>,
"'freedman@access.netaxs.com'"
<freedman@access.netaxs.com>,
"'nanog@merit.edu'"
<nanog@merit.edu>
Date: Fri, 25 Apr 1997 17:52:07 -0400
>-----Original Message-----
>From: Avi Freedman [SMTP:freedman@netaxs.com]
>Sent: Friday, April 25, 1997 5:20 PM
>To: freedman@access.netaxs.com; nanog@merit.edu
>Subject: 7007: FROM THE HORSE'S MOUTH
>
>
>MAI's view:
>
>Here's a status on what AS 7007 themselves saw and think happened.
>They're disconnected from the 'net now, so they can't post this
>themselves.
>MAI does NOT think that they were distributing the BGP routes into an
>IGP and then readvertising them on that basis; they think there was/is
>a Bay BGP bug that caused this to happen.
>
>Or Bay unfamiliarity, to be fair. BCN's are all over the core participating
>in BGP everyday in some very large networks as you know. If MIA is not
>running the Bay ISP workspace code, then they need to get Bay to educate them
>on what's available and appropriate for their environment.
>
>An outside view of what happened:
>
>And ASN 7007
>
>We saw about 60k routes in our core routers at the time, and saw
>thousands of routes from 7007 when we looked more carefully.
>
>When you and I were on the phone, we saw 70K at one time, and the Cisco's
>were at 100% doing nothing but route calculations.
>
>We kept clearing sessions to filter 7007 but the routes kept popping
>back up: Sprint (of course), UUNET, and MCI all had them.
>
>Which of course half of the Net was doing, so all routers running dampening,
>had 3/4 of the prefixes on hold.
>
>Now a good 4 hours after the main-event, I still see MAE routers with a
>couple thousand dampened paths. Most of the connectivity is stable now (from
>my view), so some of you can clear ip bgp damp and make a few more customers
>happy.
>
>I suppose that the immediate topic will be route filtering vs.
>AS_PATH filtering...
>
>As it should of been a long time ago.
>
>Raw fish tonight, Avi?
>
>Best regards,
>
>Dave Van Allen - You Tools Corporation/FASTNET(tm)
>dave@fast.net (610)289-1100 http://www.fast.net
>FASTNET - PA/NJ/DE Business Internet Solutions
>