[93513] in North American Network Operators' Group
Re: BGP analyzing tool
daemon@ATHENA.MIT.EDU (Kanagaraj Krishna)
Wed Nov 29 04:05:19 2006
From: "Kanagaraj Krishna" <kanagaraj@aims.com.my>
To: "Doug Marschke" <doug@ipath.net>
Cc: <nanog@merit.edu>
Date: Wed, 29 Nov 2006 16:57:42 +0800
Errors-To: owner-nanog@merit.edu
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Hi Doug,
How about cisco? In juniper, 'show route detail' really =
helps. Thanks.
Regards,
Kana =20
----- Original Message -----=20
From: Doug Marschke=20
To: 'Kanagaraj Krishna'=20
Cc: nanog@merit.edu=20
Sent: Wednesday, November 22, 2006 2:08 PM
Subject: RE: BGP analyzing tool
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.
=20
Doug
=20
-------------------------------------------------------------------------=
-----
From: Kanagaraj Krishna [mailto:kanagaraj@aims.com.my]=20
Sent: Tuesday, November 21, 2006 6:57 PM
To: Doug Marschke
Cc: nanog@merit.edu
Subject: Re: BGP analyzing tool
=20
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.
=20
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
=20
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>Hi Doug,</FONT></DIV>
<DIV><FONT face=3DArial=20
size=3D2> &nbs=
p; =20
How about cisco? In juniper, 'show route detail' really helps.=20
Thanks.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Regards,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Kana </FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<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>Cc:</B> <A title=3Dnanog@merit.edu=20
href=3D"mailto:nanog@merit.edu">nanog@merit.edu</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, November 22, =
2006 2:08=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: BGP analyzing =
tool</DIV>
<DIV><BR></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I don=92t =
know of any=20
tool, but it seems like you should be able to get a show route detail =
about,=20
write a script to choose inactive reasons and sort based off=20
that.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Doug<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV class=3DMsoNormal style=3D"TEXT-ALIGN: center" =
align=3Dcenter><FONT=20
face=3D"Times New Roman" size=3D3><SPAN style=3D"FONT-SIZE: 12pt">
<HR tabIndex=3D-1 align=3Dcenter width=3D"100%" SIZE=3D3>
</SPAN></FONT></DIV>
<P class=3DMsoNormal><B><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">From:</SPAN></FONT></B><FONT=20
face=3DTahoma size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">=20
Kanagaraj Krishna [mailto:kanagaraj@aims.com.my] <BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, November 21, =
2006 6:57=20
PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> Doug=20
Marschke<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Cc:</SPAN></B> <A=20
href=3D"mailto:nanog@merit.edu">nanog@merit.edu</A><BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> Re: BGP analyzing=20
tool</SPAN></FONT><o:p></o:p></P></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">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.=20
What 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=20
chosen based on the BGP algorithm (local pref, no. of hops, MED, etc). =
That=20
would show the big picture of why a certain upstream is more prefered =
than the=20
other. Thanks.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Regards,</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Kana</SPAN></FONT> <o:p></o:p></P></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: =
medium none; PADDING-LEFT: 3pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt =
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medium none">
<DIV>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">----- Original Message =
-----=20
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV style=3D"font-color: black">
<P class=3DMsoNormal style=3D"BACKGROUND: #e4e4e4"><B><FONT =
face=3DArial=20
size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">From:</SPAN></FONT></B><FONT=20
face=3DArial size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"> <A=20
title=3Ddoug@ipath.net href=3D"mailto:doug@ipath.net">Doug =
Marschke</A>=20
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><B><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">To:</SPAN></FONT></B><FONT=20
face=3DArial size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"> <A=20
title=3Dkanagaraj@aims.com.my =
href=3D"mailto:kanagaraj@aims.com.my">'Kanagaraj=20
Krishna'</A> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><B><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Sent:</SPAN></FONT></B><FONT=20
face=3DArial size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">=20
Wednesday, November 22, 2006 10:09 =
AM<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><B><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Subject:</SPAN></FONT></B><FONT=20
face=3DArial size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"> RE: BGP=20
analyzing tool<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt">What kind of router? A juniper will =
show you=20
this with a show route detail.<BR><BR>Doug<BR><BR>-----Original=20
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=20
the <BR>others.=20
=
Thanks.<BR><BR>Regards,<BR>Kana<o:p></o:p></SPAN></FONT></P></BLOCKQUOTE>=
</DIV></BLOCKQUOTE></BODY></HTML>
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