[93468] in North American Network Operators' Group
Re: BGP analyzing tool
daemon@ATHENA.MIT.EDU (Kanagaraj Krishna)
Tue Nov 21 21:57:56 2006
From: "Kanagaraj Krishna" <kanagaraj@aims.com.my>
To: "Doug Marschke" <doug@ipath.net>
Cc: <nanog@merit.edu>
Date: Wed, 22 Nov 2006 10:56:42 +0800
Errors-To: owner-nanog@merit.edu
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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=20
----- Original Message -----=20
From: Doug Marschke=20
To: 'Kanagaraj Krishna'=20
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=20
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=20
(local preference, no of AS hops, iBGP vs eBGP etc) would be hard. I =
need
this=20
info to understand why a certain upstream is being more prefered than =
the=20
others. Thanks.
Regards,
Kana
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<DIV><FONT face=3DArial size=3D2>Using cli like "sh ip bgp=20
xxx.xxx.xxx.xxx"[Cisco] or "sh route protocol bgp xxx.xxx.xxx.xxx =
detail"=20
[Juniper] would be able to show me details for specific =
destinations. What=20
i need is a software to get all the data from a routers routing=20
table, analyze the best path and summarize the reason why its being =
chosen=20
based on the BGP algorithm (local pref, no. of hops, MED, etc). That =
would show=20
the big picture of why a certain upstream is more prefered than the =
other.=20
Thanks.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Regards,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Kana</FONT> </DIV>
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<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Ddoug@ipath.net href=3D"mailto:doug@ipath.net">Doug =
Marschke</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dkanagaraj@aims.com.my=20
href=3D"mailto:kanagaraj@aims.com.my">'Kanagaraj Krishna'</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, November 22, =
2006 10:09=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: BGP analyzing =
tool</DIV>
<DIV><BR></DIV>What kind of router? A juniper will show you this =
with a=20
show route detail.<BR><BR>Doug<BR><BR>-----Original =
Message-----<BR>From: <A=20
href=3D"mailto:owner-nanog@merit.edu">owner-nanog@merit.edu</A>=20
[mailto:owner-nanog@merit.edu] On Behalf Of<BR>Kanagaraj =
Krishna<BR>Sent:=20
Tuesday, November 21, 2006 6:27 AM<BR>To: <A=20
href=3D"mailto:nanog@merit.edu">nanog@merit.edu</A><BR>Subject: Re: =
BGP=20
analyzing tool<BR><BR><BR>Hi,<BR> Are there any available =
BGP=20
analyzing tool that can be used to identify <BR>details on best chosen =
path=20
based on the BGP algorithm? NTOP can capture the<BR><BR>traffic info, =
but to=20
analyze each destination to find the reason for<BR>selection =
<BR>(local=20
preference, no of AS hops, iBGP vs eBGP etc) would be hard. I =
need<BR>this=20
<BR>info to understand why a certain upstream is being more prefered =
than the=20
<BR>others. =
Thanks.<BR><BR>Regards,<BR>Kana<BR></BLOCKQUOTE></BODY></HTML>
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