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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Inter-domain Data Exchange Questionnaire October 2005
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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Inter-domain Data Exchange Questionnaire October 2005
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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Inter-domain Data Exchange Questionnaire October 2005
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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- 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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Inter-domain Data Exchange Questionnaire October 2005
- 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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- 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)?
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- To which data/information would you never grant others access?
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- 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:
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- 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:
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- 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:
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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
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o No, because
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- Do you have close relationships or contracts with other ISPs?
Of what nature are these contracts?
o Yes,
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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
8. Intellectual Property Statement
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9. Copyright Statement
Copyright (C) The Internet Society (2005). This document is
subject to the rights, licenses and restrictions contained in
BCP 78, and except as set forth therein, the authors retain all
their rights.
10. Disclaimer
This document and the information contained herein are provided
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THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES,
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THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY
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FOR A PARTICULAR PURPOSE.
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