[116804] in North American Network Operators' Group
Re: ALTER.NET Issues in Seattle
daemon@ATHENA.MIT.EDU (Gary T. Giesen)
Wed Aug 19 14:51:17 2009
In-Reply-To: <9a9d0c6a0908191140x14feb04en4de2f1513e9a6df@mail.gmail.com>
Date: Wed, 19 Aug 2009 14:50:51 -0400
From: "Gary T. Giesen" <giesen@snickers.org>
To: nanog@nanog.org
Reply-To: giesen@snickers.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Another note:
Seeing > 50% packet loss with 605 byte packets or larger. Anything
604 or under and there's zero packet loss. With or without df-bit set.
GG
On Wed, Aug 19, 2009 at 2:40 PM, Gary T. Giesen<giesen@snickers.org> wrote:
> Seeing issues with Alter.net in Seattle to a Qwest DSL customer in
> Portland (and looks like a possible routing loop as well) from
> Calgary:
>
> traceroute 63.227.218.201
>
> Type escape sequence to abort.
> Tracing the route to 63.227.218.201
>
> =A01 gw-V4051.bb101-2420-1.cgy.akn.ca (209.90.250.33) 0 msec 0 msec 0 mse=
c
> =A02 maxtnt01-sdf-463.fast.net (204.92.61.209) 0 msec 0 msec 0 msec
> =A03 125.at-6-0-0.XT2.CAL1.ALTER.NET (152.63.138.122) 0 msec 0 msec 0 mse=
c
> =A04 POS5-0.BR1.SEA1.ALTER.NET (152.63.105.85) 224 msec 212 msec 200 msec
> =A05 POS5-0.BR1.SEA1.ALTER.NET (152.63.105.85) 188 msec 184 msec 192 msec
> =A06 204.255.169.30 (204.255.169.30) 192 msec 192 msec 196 msec
> =A07 sea-core-02.inet.qwest.net (205.171.26.85) 200 msec 204 msec 204 mse=
c
> =A08 por-core-01.inet.qwest.net (67.14.1.237) 208 msec 212 msec 224 msec
> =A09 ptld-agw1.inet.qwest.net (205.171.130.26) 240 msec 232 msec 236 msec
> =A010 ptld-dsl-gw34-10.ptld.qwest.net (207.225.86.10) 236 msec 244 msec 2=
36 msec
> =A011 x.x.x.x (x.x.x.x) 296 msec * =A0252 msec
>
> Seeing pings jump from 0 ms to 200+ ms at hop 4 (which also appears as
> hop 5), and is definitely *not* explained by geographical distance.
>
>
>
> Traceroute from my Toronto POP are fine:
>
> traceroute 63.227.218.201
> traceroute to 63.227.218.201 (63.227.218.201), 30 hops max, 60 byte packe=
ts
> =A01 =A0ge0-1.cyan.akn.ca (66.135.102.132) =A01.506 ms =A01.498 ms =A01.4=
82 ms
> =A02 =A0ge-0-0-3.V4022.smalt.akn.ca (66.135.108.85) =A02.198 ms =A02.193 =
ms =A02.180 ms
> =A03 =A0te3-5.1244.ccr02.yyz02.atlas.cogentco.com (38.112.93.49) =A01.640=
ms
> =A01.634 ms =A01.624 ms
> =A04 =A0te3-2.ccr01.ord01.atlas.cogentco.com (66.28.4.213) =A016.861 ms
> 16.884 ms te9-8.ccr01.ord01.atlas.cogentco.com (154.54.27.241) =A016.890
> ms
> =A05 =A0154.54.29.18 (154.54.29.18) =A017.594 ms =A017.594 ms =A017.582 m=
s
> =A06 =A0qwest.ord03.atlas.cogentco.com (154.54.10.186) =A017.001 ms =A016=
.384
> ms qwest.ord03.atlas.cogentco.com (154.54.12.106) =A016.435 ms
> =A07 =A0cer-core-01.inet.qwest.net (205.171.139.113) =A016.480 ms =A016.7=
95 ms
> =A016.802 ms
> =A08 =A0por-core-01.inet.qwest.net (67.14.1.237) =A072.435 ms =A072.472 m=
s =A072.448 ms
> =A09 =A0ptld-agw1.inet.qwest.net (205.171.130.26) =A072.502 ms =A072.473 =
ms =A072.473 ms
> 10 =A0ptld-dsl-gw34-10.ptld.qwest.net (207.225.86.10) =A072.985 ms =A072.=
958
> ms =A072.626 ms
> 11 =A0x.x.x.x (x.x.x.x) =A0134.030 ms * *
>
>
> Anyone else seeing the same thing?
>
> GG
>
