Internet DRAFT - draft-boschi-data-exchange-quest

draft-boschi-data-exchange-quest







                                                                          
  Internet Draft                                             Elisa Boschi 
  Document:draft-boschi-data-exchange-quest-01.txt         Hitachi Europe 
  Expires: April 2006                                           Lutz Mark 
                                                         Fraunhofer FOKUS 
                                                            Emile Stephan 
                                                           France Telecom 
                                                          Carsten Schmoll 
                                                         Fraunhofer FOKUS 
                                                                          
                                                                          
                                                             October 2005 
   
      
                  Inter-domain Data Exchange Questionnaire 
                  draft-boschi-data-exchange-quest-01.txt 
   
   
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     Abstract 
      
      This document has been created to raise the question of inter-
      domain measurements and data exchange between ISPs. The goal of 
      this questionnaire is to find out what the main concerns are, 
      and whether and how an inter-domain collaboration would be 
      beneficial for the ISP community itself. 














































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  Table of Contents 
     1.   Introduction...............................................3 
     2.   Terminology................................................4 
     3.   Questionnaire..............................................4 
     3.1  Measurement................................................5 
     3.1.1 Measurement techniques....................................6 
     3.2  Protocols and tools........................................7 
     3.3  Trustworthiness of measurement information exchanged.......8 
     3.4  Privacy....................................................8 
     3.4.1 Customer Privacy .........................................8 
     3.4.2 ISP Privacy...............................................9 
     3.5  Anonymisation.............................................10 
     3.6  General information (optional)............................12 
     4.   Inforrmative References...................................12 
     5.   Acknowledgements..........................................13 
     6.   Author's Addresses........................................13 
     7.   Copyright Statement.......................................14 
     8.   Disclaimer................................................14 
   
   
   
   1. Introduction 
   
     Internet Service Providers (ISPs) usually monitor their own 
     networks. They are interested in information on resource usage, 
     traffic load, network quality, traffic anomalies for 
     applications like QoS monitoring, fault diagnosis, anomaly or 
     intrusion detection, and troubleshooting.  
      
     Some applications like inter-provider SLA validation, or DDoS 
     detection and prevention, need (or at least can greatly profit 
     from) data measured in more than one administrative domain. 
     Currently, ISPs have minimal or no information at all about the 
     characteristics and performance of networks outside their own 
     administrative domain. 
       
     The question we try to address with this draft is to which 
     extent different ISPs are willing to cooperate in order to 
     provide results they cannot obtain by only monitoring their own 
     network. We try to understand what is currently limiting the 
     inter-domain exchange of measurements, and whether, or to which 
     extent, this is linked with research or technical issues. 
      
      
      
      
      
      
      




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  2. Terminology 
      
     Domain  
          A domain is a group of computers and devices on a network 
          that are administered as a unit with common rules and 
          procedures. 
      
     Observation Point  
          An Observation Point is a location in the network where IP 
          packets can be observed.  Examples include: a line to which 
          a probe is attached, a shared medium, such as an Ethernet-
          based LAN, a single port of a router, or a set of 
          interfaces (physical or logical) of a router.  
      
     Inter-domain measurement 
          A measurement involving multiple Observation points that do 
          not belong to the same domain. 
      
     Active measurement 
          An active measurement injects test traffic into the network 
          in order to measure network or path characteristics.  
      
     Passive measurement  
          Passive measurement is based on already existing traffic. 
          It provides information about characteristics of the real 
          current traffic in the observed network. 
      
     Interception 
          Interception means a passive measurement where an ISP looks 
          at characteristics derived from the content of traffic 
          generated by customers. The content is the part of the 
          datagram that is only of interest to the people/systems at 
          the end of the communications. For example, to try to 
          accurately identify peer-to-peer traffic by looking at 
          header-data. 
           
           
  3. Questionnaire 
      
     This section contains questions on inter-domain information 
     exchange. They have been grouped with respect to the main area 
     they refer to: measurement, security, privacy, and data 
     anonymisation. 
     The goal of this questionnaire is to collect information on the 
     real needs of inter-domain cooperation and the feelings the ISPs 
     have on the matter. The results should allow researchers to 
     evaluate the feasibility of their approaches and standardization 
     bodies to find out people’s interest on this topic.  
      




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  3.1 Measurement 
   
       
      - Are you in general interested in measurements across domains? 
       
         o Yes 
          
         o No 
          
   
   
     - What kind of data (i.e. traffic metrics) from other ISPs are 
        you interested in? 
      
      
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
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     ---------------------------------------------------------------- 
      
      
   
      - Would you have a use for a protocol (or application) that 
        would allow you to demonstrate to your customers that your 
        network is performing well? 
       
         o Yes 
          
         o No 
      
      
       
      - How do you handle the lack of precise methodology to attribute 
        performances to specific path portions? 
        
      
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     ---------------------------------------------------------------- 
   
       




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    - Do you have a motivation for end-to-end measurements which span 
      multiple domains and which can be reliably partitioned into 
      segments of single domains? 
     
       
         o Yes 
          
         o No 
   
   
      - Have you ever been blamed for problems that were out of your 
        network (due to bad or non-existing measurements)? 
       
         o Yes 
          
         o No 
   
    
      
  3.1.1 Measurement techniques  
   
    - From your point of view, for which application/reason would the 
      use of passive measurement be most applicable? 
     
   
             -  Resource usage   
              
             -  Resource allocation   
              
             -  Traffic accounting  
               
             -  Security   
              
             -  Network Quality  
              
             -  Fault diagnosis   
              
             -  Troubleshooting   
              
             -  ISP Privacy 
              
             -  Long term network planning  
              
      
    - From your point of view in which application would you consider 
      active measurement the most applicable solution to use? 
     
      
             -  Resource usage   




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             -  Resource allocation   
   
             -  Traffic accounting   
   
             -  Security   
   
             -  Network Quality  
              
             -  Fault diagnosis  
    
             -  Troubleshooting  
   
             -  ISP Privacy  
   
   
   
  3.2 Protocols and tools 
      
       
     - Would you develop/use a (STANDARDIZED) tool for handling the 
        inter-domain data exchange? 
   
   
          o Yes 
           
          o No 
           
      
     - Would you like to participate in the development process 
        of an inter-domain information exchange software/ platform/ 
        framework? 
      
      
          o Yes 
           
          o No 
   
   
     - Would you like to let other entities set up active 
        measurements that originate/terminate in your domain by using 
        tools under your administrative responsibility and control? 
   
   
          o Yes 
           
          o No 
   
   




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  3.3 Trustworthiness of measurement information exchanged  
      
      
     - Which aspect of the information exchange is most important? 
      
          o Access Control  
      
          o Quality of the measurement result exchange: 
   
               -  Accuracy of the information  
           
               -  Prompt availability of the results  
                
               -  Information usability in contracts  
                
          o Reliability of data exchange 
           
          o Machine to machine communication 
      
               -  Communication between measurement systems and  
                  Network Operation Center applications involved in 
                  the management/monitoring of the network 
   
      
  3.4 Privacy 
      
  3.4.1 Customer Privacy 
   
    
     - What information are you allowed, through measurements, to 
        collect about your users? 
      
      
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     ---------------------------------------------------------------- 
      
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     ---------------------------------------------------------------- 
   
    
     - What information are you allowed, through measurements, to 
        reveal to other ISPs about your users? 
      
      
     ---------------------------------------------------------------- 
      


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     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
      
  3.4.2 ISP Privacy 
      
       
     - What information are you allowed to reveal to other ISPs about 
        your network (e.g. topology)? 
      
      
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
      
     - To which data/information would you never grant others access? 
      
         
     ---------------------------------------------------------------- 
      
     ---------------------------------------------------------------- 
   
     - Would you, using appropriate policies, allow researchers to 
       collect data in your network (e.g. number of different flows, 
       mean number of packets per flow, mean packet size), or would 
       you share collected data with researchers? If yes, under which 
       conditions?  
      
      
          o Yes, under the following conditions: 
      
      
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          o No 




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  3.5 Anonymisation  
   
   
     Do you use any kind of anonymisation on the collected data (e.g 
     flow information, traffic traces, packet data)?  
       
          o Yes  
           
          o No 
           
      
     - If not, why? 
      
   
          o Anonymisation is still a research topic, not a mature 
            field 
           
          o It is not needed 
           
          o Concerns on the vulnerabilities of some anonymisation 
            tools to external attacks 
           
          o Others:  
                    ------------------------------------------------- 
           
          ----------------------------------------------------------- 
           
          ----------------------------------------------------------- 
   
      
     - If yes, what kind(s) of anonymisation do you use? 
      
      
          o Hash functions (one-way hashing) 
           
          o Masking 
           
          o Truncation 
           
          o Random permutations 
           
          o Others:  
                     ------------------------------------------------ 
                      
             --------------------------------------------------------- 
              
             --------------------------------------------------------- 
      




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     - Which items are targets of anonymisation? 
      
   
          o IP (v4 or v6) source addresses 
           
          o IP (v4 or v6) destination addresses  
   
          o Source Port 
   
          o Destination Port 
   
          o Entire Application Level Payload 
   
          o Part of Application Level Payload 
   
          o Others:  
                    ------------------------------------------------- 
                   
             --------------------------------------------------------- 
              
             --------------------------------------------------------- 
      
      
      
     - Do you use an anonymisation tool? If yes which one?  
   
          o Tcpdpriv  
           
          o Crypto-PaN  
   
          o Ip2anonip  
   
          o Ipsumdump 
           
          o Anonymizer  
   
          o A proprietary one: 
                                  ----------------------------------- 
                                   
                                   
          o Others: 
                     ------------------------------------------------ 
      
      
      
      
      





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  3.6 General information (optional) 
      
      
     - Have you started a business coalition with other ISPs? Why or 
        why not?  
      
          o Yes, because 
                        --------------------------------------------- 
                         
           ----------------------------------------------------------- 
            
           ----------------------------------------------------------- 
            
          o No, because 
                        --------------------------------------------- 
           
          ----------------------------------------------------------- 
           
          -----------------------------------------------------------    
      
   
     - Do you have close relationships or contracts with other ISPs? 
        Of what nature are these contracts? 
      
          o Yes, 
                      ------------------------------------------------ 
           
          ------------------------------------------------------------ 
           
          ------------------------------------------------------------ 
           
          o No 
              
      
      
  4. Questionnaire web availability 
      
     This questionnaire can be found and answered online at the 
     following address: 
      
     http://www.ist-mome.org/surveyor/quest-interdomain.html 
      
      
  5. Informative References 
      
     [Anonymizer] Anonymizer homepage: 
                  http://sourceforge.net/projects/anonymizer/ 
      





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     [Crypto-Pan] Crypto-Pan homepage: 
                  http://www.cc.gatech.edu/computing/Telecomm/cryptop
                  an/ 
       
     [Ip2anonip]  Ip2anonip homepage: 
                  http://ita.ee.lbl.gov/html/contrib/tcpdpriv.html 
      
     [Ipsumdump]  ipsumdump homepage: 
                  http://www.cs.ucla.edu/~kohler/ipsumdump/ 
       
     [Tcpdpriv]   Tcpdpriv homepage: 
                  http://ita.ee.lbl.gov/html/contrib/tcpdpriv.html 
      
      
  6. Acknowledgements 
      
     We would like to thank Michael Kundt, Maurizio Molina, Andrew 
     Cormack, Tanja Zseby, and Marcello Esposito for their 
     contribution, and valuable comments. We would also like to thank 
     the MoMe project for partial funding of this work and for 
     hosting the web version of this questionnaire. 
      
      
  7. Author's Addresses 
      
     Elisa Boschi 
     Hitachi Europe SAS 
     Immeuble Le Theleme,  
     1503 Route des Dolines 
     o6560 Valbonne, France   
     Phone: +33 4 89874180   
     Email: elisa.boschi@hitachi-eu.com 
      
     Lutz Mark 
     Fraunhofer Institute for Open Communication Systems (FOKUS)  
     Kaiserin-Augusta-Allee 31   
     10589 Berlin, Germany   
     Phone: +49 30 3463 7306   
     Email: mark@fokus.fraunhofer.de  
      
     Emile Stephan 
     France Telecom Division R & D 
     2 avenue Pierre Marzin 
     22307 Lannion, France 
     Fax:   +33 2 96 05 18 52 
     Email: emile.stephan@francetelecom.com 
      
     Carsten Schmoll 





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     Fraunhofer Institute for Open Communication Systems (FOKUS)  
     Kaiserin-Augusta-Allee 31   
     10589 Berlin, Germany   
     Phone: +49 30 3463 7136   
     Email: schmoll@fokus.fraunhofer.de 
      
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