BGP analyzing tool

Wed Nov 29 08:57:42 UTC 2006

Hi Doug,
             How about cisco? In juniper, 'show route detail' really helps. Thanks.

Regards,
Kana  
  ----- Original Message ----- 
  From: Doug Marschke 
  To: 'Kanagaraj Krishna' 
  Cc: nanog at merit.edu 
  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.

  Doug

------------------------------------------------------------------------------

  From: Kanagaraj Krishna [mailto:kanagaraj at aims.com.my] 
  Sent: Tuesday, November 21, 2006 6:57 PM
  To: Doug Marschke
  Cc: nanog at 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 at merit.edu [mailto:owner-nanog at merit.edu] On Behalf Of
    Kanagaraj Krishna
    Sent: Tuesday, November 21, 2006 6:27 AM
    To: nanog at 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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