[outages] Level3 Chicago

[Jeremy Chadwick]

It would be helpful if you could use something like mtr instead of
traceroute in this case.  The below trace could be indicating ICMP
de-prioritisation on L3 routers, which is known to be enabled, but could
also be an indicator of packet loss starting at hop #5 and "trickling
down" through succeeding hops (possibly #10 or #11).

mtr --order=LSRNABW can help in diagnosing this.

-- 
| Jeremy Chadwick                                   jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

On Tue, Aug 18, 2009 at 01:36:58PM -0400, Clayton Zekelman wrote:
> 
> Further to the issue below - I'm typically seeing packet loss at hop
> 5.  This particular trace doesn't show it though, although there are
> timeouts on hop 6.
> 
>   1 br0.win.mnsi.net (216.8.137.193) 0 msec 0 msec 0 msec
>   2 ge-6-12-222.car2.Detroit1.Level3.net (64.152.144.77) 0 msec 4 msec 0 msec
>   3 ae-11-11.car1.Detroit1.Level3.net (4.69.133.245) 4 msec 0 msec 4 msec
>   4 ae-8-8.ebr2.Chicago1.Level3.net (4.69.133.242) 8 msec 4 msec 16 msec
>   5 ae-5.ebr2.Chicago2.Level3.net (4.69.140.194) 8 msec 8 msec 8 msec
>   6  *  *
>     ae-2-2.ebr2.Washington1.Level3.net (4.69.132.70) 32 msec
>   7 ae-72-72.csw2.Washington1.Level3.net (4.69.134.150) 36 msec
>     ae-82-82.csw3.Washington1.Level3.net (4.69.134.154) 36 msec
>     ae-72-72.csw2.Washington1.Level3.net (4.69.134.150) 32 msec
>   8 ae-2-79.edge2.Washington4.Level3.net (4.68.17.83) 28 msec
>     ae-3-89.edge2.Washington4.Level3.net (4.68.17.147) 40 msec
>     ae-1-69.edge2.Washington4.Level3.net (4.68.17.19) 24 msec
>   9 savvis-level3-te.Washington1.Level3.net (4.68.110.102) 32 msec
> 28 msec 40 msec
>  10  *  *  *
>  11 cr1-bundle-pos1.NewYork.savvis.net (204.70.196.137) 28 msec *  28 msec
>  12 206.24.199.2 48 msec 32 msec 32 msec
>  13 toroonnldr01.bb.telus.com (154.11.6.71) 32 msec 192 msec 36 msec
>  14 host82.145.115.209.in-addr.arpa (209.115.145.82) 40 msec 40 msec 40 msec
>  15 209.202.116.58 40 msec 48 msec 36 msec
>  16 www.govital.net (209.202.88.24) 36 msec 40 msec 36 msec
> 
> 
> At 01:05 PM 8/18/2009, Clayton Zekelman wrote:
> 
> >I'm seeing some minor packet loss traversing Level3 in Chicago.
> >
> >We connect to their network in Detroit, and we're clean until the
> >first hop into Chicago.
> >
> >Anyone else seeing anything like that?
> >
> >
> >
> >---
> >Clayton Zekelman
> >Managed Network Systems Inc. (MNSi)
> >344-300 Tecumseh Rd. E.
> >Windsor, Ontario
> >N8X 5E8
> >
> >tel. 519-985-8410
> >fax. 519-985-8409
> >
> >_______________________________________________
> >outages mailing list
> >outages at outages.org
> >https://puck.nether.net/mailman/listinfo/outages
> >
> >
> >No virus found in this incoming message.
> >Checked by AVG - www.avg.com
> >Version: 8.5.409 / Virus Database: 270.13.60/2311 - Release Date:
> >08/18/09 06:03:00
> 
> ---
> Clayton Zekelman
> Managed Network Systems Inc. (MNSi)
> 344-300 Tecumseh Rd. E.
> Windsor, Ontario
> N8X 5E8
> 
> tel. 519-985-8410
> fax. 519-985-8409
> 
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