[93484] in North American Network Operators' Group
RE: BGP analyzing tool
daemon@ATHENA.MIT.EDU (Jon Lyons)
Mon Nov 27 12:44:23 2006
Date: Mon, 27 Nov 2006 09:38:02 -0800 (PST)
From: Jon Lyons <jlyons30@yahoo.com>
To: Doug Marschke <doug@ipath.net>,
'Kanagaraj Krishna' <kanagaraj@aims.com.my>
Cc: nanog@merit.edu
In-Reply-To: <0MKp2t-1GmlHm2nhD-0003tm@mrelay.perfora.net>
Errors-To: owner-nanog@merit.edu
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I use the FCP from internap...Optomizes the BGP routes and produces nice graphs/reports that I never look at... :)
http://www.internap.com/solutions/routecontrol/page1980.html
Doug Marschke <doug@ipath.net> wrote: v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} I don’t know of any tool, but it seems like you should be able to get a show route detail about, write a script to choose inactive reasons and sort based off that.
Doug
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From: Kanagaraj Krishna [mailto:kanagaraj@aims.com.my]
Sent: Tuesday, November 21, 2006 6:57 PM
To: Doug Marschke
Cc: nanog@merit.edu
Subject: Re: BGP analyzing tool
Using cli like "sh ip bgp xxx.xxx.xxx.xxx"[Cisco] or "sh route protocol bgp xxx.xxx.xxx.xxx detail" [Juniper] would be able to show me details for specific destinations. What i need is a software to get all the data from a routers routing table, analyze the best path and summarize the reason why its being chosen based on the BGP algorithm (local pref, no. of hops, MED, etc). That would show the big picture of why a certain upstream is more prefered than the other. Thanks.
Regards,
Kana
----- Original Message -----
From: Doug Marschke
To: 'Kanagaraj Krishna'
Sent: Wednesday, November 22, 2006 10:09 AM
Subject: RE: BGP analyzing tool
What kind of router? A juniper will show you this with a show route detail.
Doug
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
Kanagaraj Krishna
Sent: Tuesday, November 21, 2006 6:27 AM
To: nanog@merit.edu
Subject: Re: BGP analyzing tool
Hi,
Are there any available BGP analyzing tool that can be used to identify
details on best chosen path based on the BGP algorithm? NTOP can capture the
traffic info, but to analyze each destination to find the reason for
selection
(local preference, no of AS hops, iBGP vs eBGP etc) would be hard. I need
this
info to understand why a certain upstream is being more prefered than the
others. Thanks.
Regards,
Kana
---------------------------------
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I use the FCP from internap...Optomizes the BGP routes and produces nice graphs/reports that I never look at... :)<br><br>http://www.internap.com/solutions/routecontrol/page1980.html<br><br><b><i>Doug Marschke <doug@ipath.net></i></b> wrote:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 11 (filtered medium)"> <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} </style> <![endif]--> <style> <!-- /* Font Definitions */ @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman";} a:link, span.MsoHyperlink
{color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:blue; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-reply; font-family:Arial; color:navy;} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in;} 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]--> <div class="Section1"> <div class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">I don’t know of any tool, but it seems like you should be able to get a show route detail about, write a script to choose inactive reasons and sort based off that.<o:p></o:p></span></font></div> <div class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt;
font-family: Arial; color: navy;"><o:p> </o:p></span></font></div> <div class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Doug<o:p></o:p></span></font></div> <div class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><o:p> </o:p></span></font></div> <div> <div class="MsoNormal" style="text-align: center;" align="center"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> <hr tabindex="-1" align="center" size="3" width="100%"> </span></font></div> <div class="MsoNormal"><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;"> Kanagaraj Krishna [mailto:kanagaraj@aims.com.my] <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, November 21,
2006 6:57 PM<br> <b><span style="font-weight: bold;">To:</span></b> Doug Marschke<br> <b><span style="font-weight: bold;">Cc:</span></b> nanog@merit.edu<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: BGP analyzing tool</span></font><o:p></o:p></div> </div> <div class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"><o:p> </o:p></span></font></div> <div> <div class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Using cli like "sh ip bgp xxx.xxx.xxx.xxx"[Cisco] or "sh route protocol bgp xxx.xxx.xxx.xxx detail" [Juniper] would be able to show me details for specific destinations. What i need is a software to get all the data from a routers routing table, analyze the best path and summarize the reason why its being chosen based on the BGP algorithm (local pref, no. of hops, MED, etc). That would show the big picture of why a certain upstream is more prefered
than the other. Thanks.</span></font><o:p></o:p></div> </div> <div> <div class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"> <o:p></o:p></span></font></div> </div> <div> <div class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Regards,</span></font><o:p></o:p></div> </div> <div> <div class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Kana</span></font> <o:p></o:p></div> </div> <blockquote style="border-style: none none none solid; border-color: -moz-use-text-color -moz-use-text-color -moz-use-text-color black; border-width: medium medium medium 1.5pt; margin: 5pt 0in 5pt 3pt; padding: 0in 0in 0in 3pt;"> <div> <div class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">----- Original Message ----- <o:p></o:p></span></font></div> </div> <div style=""> <div class="MsoNormal"
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"><b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; font-weight: bold;">From:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> <a href="mailto:doug@ipath.net" title="doug@ipath.net">Doug Marschke</a> <o:p></o:p></span></font></div> </div> <div> <div class="MsoNormal"><b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; font-weight: bold;">To:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> <a href="mailto:kanagaraj@aims.com.my" title="kanagaraj@aims.com.my">'Kanagaraj Krishna'</a> <o:p></o:p></span></font></div> </div> <div> <div class="MsoNormal"><b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;
font-weight: bold;">Sent:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> Wednesday, November 22, 2006 10:09 AM<o:p></o:p></span></font></div> </div> <div> <div class="MsoNormal"><b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; font-weight: bold;">Subject:</span></font></b><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> RE: BGP analyzing tool<o:p></o:p></span></font></div> </div> <div> <div class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;"><o:p> </o:p></span></font></div> </div> <div class="MsoNormal"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">What kind of router? A juniper will show you this with a show route detail.<br> <br> Doug<br> <br> -----Original Message-----<br> From: <a href="mailto:owner-nanog@merit.edu">owner-nanog@merit.edu</a> [mailto:owner-nanog@merit.edu] On Behalf
Of<br> Kanagaraj Krishna<br> Sent: Tuesday, November 21, 2006 6:27 AM<br> To: <a href="mailto:nanog@merit.edu">nanog@merit.edu</a><br> Subject: Re: BGP analyzing tool<br> <br> <br> Hi,<br> Are there any available BGP analyzing tool that can be used to identify <br> details on best chosen path based on the BGP algorithm? NTOP can capture the<br> <br> traffic info, but to analyze each destination to find the reason for<br> selection <br> (local preference, no of AS hops, iBGP vs eBGP etc) would be hard. I need<br> this <br> info to understand why a certain upstream is being more prefered than the <br> others. Thanks.<br> <br> Regards,<br> Kana<o:p></o:p></span></font></div> </blockquote> </div> </blockquote><br><p> 
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