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NANOG Meeting Presentation Abstract

Rcat: Root Cause Analysis Tool
Meeting: NANOG43
Date / Time: 2008-06-02 3:00pm - 3:30pm
Room: Salon D/E
Presenters: Speakers:

Anthony Lambert, France Telecom R&D

Anthony Lambert is a network engineer from the University of Technology of Compiégne (UTC) since 2006. He has been working until now as a Ph.D. student at Orange Labs (France Telecom R&D) and at the CNRS Heudiasyc Laboratory of the UTC. His Ph.D. thesis aims at developing mechanisms to improve quality of the inter domain routing.
Abstract: Rcat is an eBGP root cause analysis tool developed by Anthony Lambert, PhD student at Orange Labs. It is publicly available at: http://rcat.rd.francetelecom.com/



Rcat analyzes BGP announcements sent by route-views eBGP peers, so as to determine which ASs are the more likely to have originating the inter domain structure changes which have lead to the emission and spread of the BGP announcements collected. Rcat aims at helping NOCs providing them with an increased reactivity during outages and an increased proactivity, detecting small recurrent events for instance.



In this presentation we focus on two case study: The impact of the January Mediterranean Cable Break in Egypt. We compare the events Rcat points out with results presented by Renesys on their blog.



We show that using Rcat results we succeed in rebuilding Renesys\' unreachability curve and that we are able using Rcat to explain what the different peaks in this curve correspond to.



The second case study is an event which has occurred 10757 times in February 2008, pointing out the ability of Rcat to detect recurrent events and the importance of fixing them as they put a constant, heavy and useless stress on routers.
Files: pdfAnthony Lambert Presentation(PDF)
youtubeRcat: Root Cause Analysis Tool
Sponsors: None.

Back to NANOG43 agenda.

NANOG43 Abstracts

  • VOIP Peering
    Speakers:
    Shrihari PanditStealth Communications; .
  • ISP Security
    Speakers:
    Danny McPhersonArbor Networks; .
    Stefan Fouant, Neustar;
  • ISP Security
    Speakers:
    Danny McPhersonArbor Networks; .
    Stefan Fouant, Neustar;
  • Trace Flow
    Speakers:
    Arun ViswanathanNone; .
    Krishnamurthy SubramanianNone; .
    Vishal ZinjuvadiaNone; .
    Rajeev ManurNone; .
  • Trace Flow
    Speakers:
    Arun ViswanathanNone; .
    Krishnamurthy SubramanianNone; .
    Vishal ZinjuvadiaNone; .
    Rajeev ManurNone; .
  • Trace Flow
    Speakers:
    Arun ViswanathanNone; .
    Krishnamurthy SubramanianNone; .
    Vishal ZinjuvadiaNone; .
    Rajeev ManurNone; .
  • Trace Flow
    Speakers:
    Arun ViswanathanNone; .
    Krishnamurthy SubramanianNone; .
    Vishal ZinjuvadiaNone; .
    Rajeev ManurNone; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Panel: North American IXPs
    Moderators:
    Charlie GuckerOne Step; .
    Panelists:
    John SavageauAny2; .
    Shrihari PanditBig Ape; .
    Lane PattersonEquinix; .
    Alex ReppenNYCNAP; .
    Akio SugenoNYIIX; .
    Christopher QuesadaSwitch and Data; .
  • Routing Tools
    Moderators:
    Joel Jaeggli, Nokia; Panelists:
    Ricardo OliveiraUCLA; .
  • Routing Tools
    Moderators:
    Joel Jaeggli, Nokia; Panelists:
    Ricardo OliveiraUCLA; .

 

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