<HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word"><head><META content="text/html; charset=utf-8" http-equiv="Content-Type">
<STYLE><!-- /* Style Definitions */ p.fec94190-018a-4079-809b-89400b143d85, li.fec94190-018a-4079-809b-89400b143d85, div.fec94190-018a-4079-809b-89400b143d85, table.fec94190-018a-4079-809b-89400b143d85Table {margin:0cm; margin-bottom:.0001pt;} div.Section1 {page:Section1;} --></STYLE>
<meta content="text/html; charset=utf-8" http-equiv=Content-Type>
<meta content="Microsoft Word 12 (filtered medium)" name=Generator>
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:Courier;
panose-1:2 7 4 9 2 2 5 2 4 4;}
@font-face
{font-family:Courier;
panose-1:2 7 4 9 2 2 5 2 4 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Helvetica-Bold;
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.E-mailStijl19
{mso-style-type:personal-reply;
font-family:"Arial","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head><BODY>
<DIV><FONT FACE="Arial"><FONT COLOR="#000000" SIZE="2">
<div class=Section1>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>It's supported on the BI-RX as well.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>On the SX it's unsupported<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Ronald<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
</FONT></FONT></DIV><FONT COLOR="#0000ff"><FONT FACE="Arial" SIZE="2">Met vriendelijke groet, With kind regards,</FONT> </FONT><BR><BR><FONT COLOR="#0000ff" FACE="Arial" SIZE="2"><IMG ALIGN="baseline" ALT="www.qi.nl" BORDER="0" HSPACE="0" SRC="cid:imagea68d22.gif@34eb92a7.d3c6449c"></FONT><BR><BR>
<P CLASS="fec94190-018a-4079-809b-89400b143d85"><FONT FACE="Arial" SIZE="2"><FONT COLOR="#0000ff">Ronald Esveld<BR>network engineer<BR><BR><STRONG>Qi ict</STRONG><BR>Delftechpark 35-37<BR>Postbus 402, 2600 AK Delft<BR><BR></FONT>
<TABLE BORDER="0">
<TBODY>
<TR>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">T</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">:</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">+31 15 888 0 444</FONT></TD></TR>
<TR>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">F</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">:</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">+31 15 888 0 445</FONT></TD></TR>
<TR>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">E</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">:</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2"><a href="mailto:ronald.esveld@qi.nl">ronald.esveld@qi.nl</a></FONT></TD></TR>
<TR>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">I</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">:</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2"><A HREF="http://www.qi.nl/">http://www.qi.nl</A></FONT></TD></TR></TBODY></TABLE></FONT><BR>
<FONT COLOR="#0000ff" FACE="Arial" SIZE="2"><B>Qi ict evenementen:</B></FONT>
<TABLE BORDER="0">
<TBODY>
<TR>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2">Qi ict op de</FONT></TD>
<TD ALIGN="left"><FONT COLOR="#0000ff" FACE="Arial" SIZE="2"><A HREF="http://www.qi.nl/cms/publish/content/showpage.asp?pageid=431">TelecomVak-LAN Expo 2008</A></FONT></TD></TR>
</TBODY></TABLE><FONT></FONT>
<BR></P>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Van:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Frank Louwers
[mailto:frank@openminds.be] <br>
<b>Verzonden:</b> woensdag 29 oktober 2008 8:48<br>
<b>Aan:</b> foundry-nsp@puck.nether.net<br>
<b>CC:</b> Ronald Esveld; Charles Ball<br>
<b>Onderwerp:</b> Re: [f-nsp] foundry equivalent of allowas-in<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal>On 27 Oct 2008, at 18:09, Charles Ball wrote:<o:p></o:p></p>
</div>
<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:black'>I found this in the 3.8 manual for xmr/mx:<br>
</span><span style='font-family:"Helvetica-Bold","serif";color:black'><o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica-Bold","serif";
color:black'>Configuring a PE to Allow Routes with its AS Number<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>BGP rejects routes that contain its own AS number within its
AS_PATH attribute to prevent routing loops. In an</span><span style='font-size:
10.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>MPLS/VPN hub and spoke topology this can stop legitimate routes
from being accepted. The<span class=apple-converted-space> </span></span><span style='color:black'>allowas-in</span><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>command fixes this problem by allowing you to set a parameter that
disables the AS_PATH check function for</span><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>routes learned from a specified location.</span><span style='font-size:10.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>To configure a PE to disable the AS_PATH check function for routes
sent to it by its BGP neighbor (a CE router</span><span style='font-size:10.0pt;
font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>with the IP address 33.33.36.2) for a maximum limit of 3
occurrences of the route, enter the following command at</span><span style='font-size:10.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Helvetica","sans-serif";
color:black'>the BGP VRF configuration level.</span><span style='font-size:
10.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:Courier;color:black'>NetIron(config-bgp-ipv4u-vrf)#
neighbor 33.33.36.2 allowas-in 3<o:p></o:p></span></p>
</div>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<p class=MsoNormal>It seems this is a MRX/MX feature only? Any ideas how to do
this on a BigIron?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Regards,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Frank<o:p></o:p></p>
</div>
</div>
<FONT SIZE="+0"></FONT><FONT SIZE="+0"></FONT> <FONT SIZE="+0"></FONT>
<DIV></DIV><DISCLAIMER></DISCLAIMER><FONT SIZE="+0"></FONT>
<P></P>
<P></P></BODY></HTML>