RE: UUNET service

12 Apr 2002

      In the cisco router, if you configure a aggregate route under bgp, it will
be pointing to null0 to prevent this senario from happening. So my question(
not related to attitude)is:Is this because of the aggregation?

-ns

-----Original Message-----
From: jlewis@lewis.org [mailto:jlewis@lewis.org]
Sent: 12 April 2002 4:21 PM
To: Bradley Corner
Cc: nanog@merit.edu
Subject: Re: UUNET service

To me, that looks more like an outage (now fixed) on a customer network.
The 'loop' between 500.Serial2-11.GW4.BWI1.ALTER.NET and
core62007-gw.customer.alter.net, could likely be caused by UU's customer
advertising an aggregate route to UU, but not actually having a route to
the IP...so they default back to UU, and UU sends it back to the customer.

This was likely a problem on the customer's network, so why should UUNet
take a trouble report from you?  Not only are you not _the_ customer,
you're not even a customer, and it's likely not a problem they can do
anything about.  If it really were a UUNet problem, they probably assume
their customer will report it.
...
| 37  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 161 |   -x       | UUNET
Technologies, Inc.             |
| 38  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 210 |   --x      | UUNET
On Fri, 12 Apr 2002, Bradley Corner wrote:
...
I tried to notify UUNET at their 800-900-0241 number that there was a
loop in their network. They told me that if I didn't have an account
with them they were not interested in any information that I may have
had for them. I stated that I was just calling so that they could pass
the information onto an engineer. He repeated himself saying if you do
not have an account with us I will not do anything with the information.
I guess they think they run the internet and us small ISPs couldn't
possibly know anything...
In case someone at UUNET reads this here is the traceroute.
==================================================
=== VisualRoute report on 12-Apr-02 3:04:18 PM ===
==================================================
Report for online.mmsi-usa.com [162.33.138.132]
Analysis: The routing loop (65.195.230.218 / 162.33.130.4 /
162.33.128.249 / 205.197.182.201 / 162.33.138.129 / 65.195.230.217)
starting in
hops 12-17 is not allowing IP packets to get to their destination.
------------------------------------------------------------------------
------------------------------------------------------------------------
-----------------------------
| Hop | %Loss | IP Address      | Node Name
| Location                | Tzone  | ms  | Graph      | Network
|
------------------------------------------------------------------------
------------------------------------------------------------------------
-----------------------------
| 0   |       | 10.100.15.40    | BRADLEY.nefmls.com
| ...                     |        |     |            | (private use)
|
| 1   |       | 209.12.49.1     | -
| ?Jacksonville, FL 32256 |        | 1   | x          | Northeast
Florida MLS                |
| 2   |       | 206.222.124.121 | -
| ?Herndon, VA 20165      |        | 3   | x          | e.spire
Communications, Inc.         |
| 3   |       | 206.222.126.77  | washing2-dc-a5-0-0-10.rt.espire.net
| -                       |        | 27  | x--        | e.spire
Communications, Inc.         |
| 4   |       | 206.222.127.118 | reston-va-1-pos0-0-0.rt.espire.net
| -                       |        | 37  | x---       | e.spire
Communications, Inc.         |
| 5   |       | 198.32.187.97   | mae-east-level3.com
| Vienna, VA, USA         |        | 133 | --x-       | Exchange Point
Blocks                |
| 6   |       | 64.159.18.98    | ae0-54.mp2.Washington1.Level3.net
| Washington, DC, USA     | -05:00 | 137 |  -x---     | Level 3
Communications, Inc.         |
| 7   |       | 64.159.0.110    | so-0-0-0.mp1.Philadelphia1.Level3.net
| Philadelphia, PA, USA   | -05:00 | 147 |  -x------  | Level 3
Communications, Inc.         |
| 8   |       | 64.159.0.150    |
gige9-0.hsipaccess2.Philadelphia1.Level3.net | Philadelphia, PA, USA   |
-05:00 | 137 |  -x----    | Level 3 Communications, Inc.         |
| 9   |       | 63.208.101.158  | unknown.Level3.net
| -                       |        | 147 |  -x------- | Level 3
Communications, Inc.         |
| 10  |       | 162.33.162.25   | 401n--30th-st--phily.coretel.net
| ?Annapolis, MD 21401    |        | 139 | --x----    | Core
Communications, Inc.            |
| 11  | 10    | 162.33.162.29   | baltamtrak-p.highway.coretel.net
| ?Annapolis, MD 21401    |        | 146 |  -x------  | Core
Communications, Inc.            |
| 12  |       | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 142 |  -x----    | UUNET
Technologies, Inc.             |
| 13  |       | 162.33.130.4    | i97.toad.net
| ?Woodbridge, NJ 07095   |        | 124 | --x--      | RAM
Communications Consultants, Inc. |
| 14  |       | 162.33.128.249  | tiara-2-balto.ds1.toad.net
| ?Woodbridge, NJ 07095   |        | 134 |  -x----    | RAM
Communications Consultants, Inc. |
| 15  |       | 205.197.182.201 | max2.toad.net
| ?Severna Park, MD 21146 |        | 146 |  -x--      | ToadNet, Inc.
|
| 16  |       | 162.33.138.129  | mmsi-cpe.dsllan.toad.net
| ?Woodbridge, NJ 07095   |        | 198 |   -x---    | RAM
Communications Consultants, Inc. |
| 17  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 147 |   x--      | UUNET
Technologies, Inc.             |
| 18  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 154 |   -x----   | UUNET
Technologies, Inc.             |
| 19  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 154 |   -x--     | UUNET
Technologies, Inc.             |
| 20  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 170 |  --x---    | UUNET
Technologies, Inc.             |
| 21  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 131 |  -x--      | UUNET
Technologies, Inc.             |
| 22  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 150 |   -x---    | UUNET
Technologies, Inc.             |
| 23  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 159 |   -x-      | UUNET
Technologies, Inc.             |
| 24  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 171 |   -x---    | UUNET
Technologies, Inc.             |
| 25  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 169 |   -x-      | UUNET
Technologies, Inc.             |
| 26  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 188 |   -x----   | UUNET
Technologies, Inc.             |
| 27  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 169 |    x--     | UUNET
Technologies, Inc.             |
| 28  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 191 |    x-----  | UUNET
Technologies, Inc.             |
| 29  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 179 |    x---    | UUNET
Technologies, Inc.             |
| 30  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 188 |   -x----   | UUNET
Technologies, Inc.             |
| 31  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 179 |   -x--     | UUNET
Technologies, Inc.             |
| 32  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 163 |    x       | UUNET
Technologies, Inc.             |
| 33  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 184 |   -x-      | UUNET
Technologies, Inc.             |
| 34  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 168 |   -x       | UUNET
Technologies, Inc.             |
| 35  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 166 |   -x       | UUNET
Technologies, Inc.             |
| 36  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 185 |   -x-      | UUNET
Technologies, Inc.             |
| 37  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 161 |   -x       | UUNET
Technologies, Inc.             |
| 38  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 210 |   --x      | UUNET
Technologies, Inc.             |
| 39  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 152 |   -x       | UUNET
Technologies, Inc.             |
| 40  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 167 |   -x       | UUNET
Technologies, Inc.             |
| 41  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 176 |   -x       | UUNET
Technologies, Inc.             |
| 42  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 164 |    x       | UUNET
Technologies, Inc.             |
| 43  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 173 |    x       | UUNET
Technologies, Inc.             |
| 44  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 158 |   -x       | UUNET
Technologies, Inc.             |
| 45  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 168 |    x       | UUNET
Technologies, Inc.             |
| 46  | 50    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 166 |    x       | UUNET
Technologies, Inc.             |
| 47  | 50    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 159 |    x       | UUNET
Technologies, Inc.             |
| 48  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 140 |   x-       | UUNET
Technologies, Inc.             |
| 49  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 145 |   x-       | UUNET
Technologies, Inc.             |
| 50  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 170 |   -x       | UUNET
Technologies, Inc.             |
| 51  | 70    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 137 |   x-       | UUNET
Technologies, Inc.             |
| 52  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 133 |   x-       | UUNET
Technologies, Inc.             |
| 53  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 142 |   x-       | UUNET
Technologies, Inc.             |
| 54  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 147 |   x-       | UUNET
Technologies, Inc.             |
| 55  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 143 |   x-       | UUNET
Technologies, Inc.             |
| 56  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 156 |   -x       | UUNET
Technologies, Inc.             |
| 57  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 167 |   -x       | UUNET
Technologies, Inc.             |
| 58  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 167 |   -x       | UUNET
Technologies, Inc.             |
| 59  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 170 |   -x       | UUNET
Technologies, Inc.             |
| 60  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 174 |   -x       | UUNET
Technologies, Inc.             |
| 61  | 70    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 173 |   -x       | UUNET
Technologies, Inc.             |
| 62  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 178 |   -x       | UUNET
Technologies, Inc.             |
| 63  | 60    | 65.195.230.217  | 500.Serial2-11.GW4.BWI1.ALTER.NET
| Baltimore, MD, USA      | -05:00 | 186 |   -x       | UUNET
Technologies, Inc.             |
| 64  | 60    | 65.195.230.218  | core62007-gw.customer.alter.net
| -                       |        | 183 |    x-      | UUNET
Technologies, Inc.             |
| ... |       |                 |
|                         |        |     |            |
|
| ?   |       | 162.33.138.132  | online.mmsi-usa.com
| ?Woodbridge, NJ 07095   |        |     |            | RAM
Communications Consultants, Inc. |
------------------------------------------------------------------------
------------------------------------------------------------------------
-----------------------------
Roundtrip time to 65.195.230.218, average = 183ms, min = 152ms, max =
210ms -- 12-Apr-02 3:04:18 PM
Bradley Corner
Northeast Florida Multiple Listing Service, Inc.
7801 Deecreek Club Rd Ste 1
Jacksonville FL 32217
(904) 394-9494
-- 
----------------------------------------------------------------------
 Jon Lewis *jlewis@lewis.org*|  I route
 System Administrator        |  therefore you are
 Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________

RE: UUNET service

Shi, Ning