[100067] in North American Network Operators' Group
Re: more-specifics via IX
daemon@ATHENA.MIT.EDU (Wolfgang Tremmel)
Mon Oct 15 07:42:18 2007
In-Reply-To: <17f73c0a93eb533751704578db90ab63@visi.com>
Cc: nanog@merit.edu
Reply-To: nanog@medit.edu
From: Wolfgang Tremmel <wolfgang.tremmel@de-cix.net>
Date: Mon, 15 Oct 2007 13:41:34 +0200
To: Bradley Urberg Carlson <buc@visi.com>
Errors-To: owner-nanog@merit.edu
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Am 15.10.2007 um 07:09 schrieb Bradley Urberg Carlson:
>
> I have a few customers' customers, who appear at a local IX. Due
> to the MLPA-like nature of the IX, I hear their prefixes both at
> the IX and via my own transit customers. I normally use localpref
> to prefer customer advertisements over peers' advertisements.
>
> There is a customer's customer who is advertising more-specifics at
> the IX (and using a different source AS, to boot). I can think of
> a couple ways to prevent hearing these, but thought I should ask
> for suggestions first.
>
you should honor your customers routing policy and simply accept the
routes.
Wolfgang
--
Wolfgang Tremmel e-mail: wolfgang.tremmel@de-cix.net
DE-CIX Management GmbH Phone: +49 69 1730 902-26
Lindleystr. 12, 60314 Frankfurt Mobile: +49 173 340 4833
Geschaeftsfuehrer Harald A. Summa Fax: +49 69 4056 2716
Registergericht AG Koeln, HRB 51135 http://www.de-cix.net
Zentrale: Lichtstr. 43i, 50825 Koeln
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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><BR><DIV><DIV>Am 15.10.2007 um =
07:09 schrieb Bradley Urberg Carlson:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">I have a =
few customers' customers, who appear at a local IX.<SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>Due to the MLPA-like nature =
of the IX, I hear their prefixes both at the IX and via my own transit =
customers.<SPAN class=3D"Apple-converted-space">=A0 </SPAN>I normally =
use localpref to prefer customer advertisements over peers' =
advertisements.</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">There is a customer's customer who is advertising =
more-specifics at the IX (and using a different source AS, to =
boot).<SPAN class=3D"Apple-converted-space">=A0 </SPAN>I can think of a =
couple ways to prevent hearing these, but thought I should ask for =
suggestions first.</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; =
"><BR></DIV></BLOCKQUOTE><BR><DIV>you should honor your customers =
routing policy and simply accept the routes.</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Wolfgang</DIV></DIV><BR><DIV>=
<SPAN class=3D"Apple-style-span" style=3D"border-collapse: separate; =
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style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ; font-family: Helvetica; ; font-size: 10px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Helvetica; ; font-size: =
10px; "><SPAN class=3D"Apple-style-span" style=3D"font-family: =
Helvetica; ; font-size: 10px; "><SPAN class=3D"Apple-style-span" =
style=3D"font-size: 10px; ">--=A0</SPAN></SPAN></SPAN></DIV><DIV =
style=3D"font-family: Monaco; font-size: 10px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Monaco; font-size: =
10px; ">Wolfgang Tremmel=A0 =A0=A0 =A0=A0 =A0=A0 =A0=A0 =A0=A0 =A0=A0 =
=A0e-mail: <A =
href=3D"mailto:wolfgang.tremmel@de-cix.net">wolfgang.tremmel@de-cix.net</A=
></SPAN></DIV><DIV style=3D"font-family: Monaco; font-size: 10px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Monaco; =
font-size: 10px; ">DE-CIX Management GmbH=A0 =A0=A0 =A0=A0 =A0=A0 =A0=A0 =
=A0Phone: +49 69 1730 902-26</SPAN></DIV><DIV style=3D"font-family: =
Monaco; font-size: 10px; "><SPAN class=3D"Apple-style-span" =
style=3D"font-family: Monaco; font-size: 10px; ">Lindleystr. 12, 60314 =
Frankfurt=A0 =A0=A0 =A0Mobile: +49 173 340 4833</SPAN></DIV><DIV =
style=3D"font-family: Monaco; font-size: 10px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Monaco; font-size: =
10px; ">Geschaeftsfuehrer Harald A. Summa =A0 =A0Fax: +49 69 4056 =
2716</SPAN></DIV><DIV style=3D"font-family: Monaco; font-size: 10px; =
"><SPAN class=3D"Apple-style-span" style=3D"font-family: Monaco; =
font-size: 10px; ">Registergericht AG Koeln, HRB 51135=A0 <A =
href=3D"http://www.de-cix.net">http://www.de-cix.net</A></SPAN></DIV><DIV =
style=3D"font-family: Monaco; font-size: 10px; "><SPAN =
class=3D"Apple-style-span" style=3D"font-family: Monaco; font-size: =
10px; ">Zentrale: Lichtstr. 43i, 50825 Koeln</SPAN></DIV><DIV =
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class=3D"khtml-block-placeholder"></DIV><BR =
class=3D"Apple-interchange-newline"></SPAN></SPAN></SPAN> =
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