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Draft minutes of the TT-WG at RIPE51.

  • From: Henk Uijterwaal <
  • Date: Sun, 23 Oct 2005 18:12:06 +0200
  • Cc:

Dear all,

here are the drafts minutes of the TT-WG meeting at RIPE51.  There are
still a few URL's missing and the scribe missed at least 1 answer to
a question.  This will be corrected.  In the meantime, please let me
know of any other corrections that you might have.  Kind regards,


Minutes of Test Traffic Working Group at RIPE51

Location: Krasnapolsky Hotel, Amsterdam, NL
Date: 12 October 2005
Time: 16:00 - 18:00
Chair: Henk Uijterwaal - RIPE NCC
Scribe: Mark Santcroos - RIPE NCC

1. Administrativia

2. TTM Status and Plans
- Henk Uijterwaal

3. Building a solution for active monitoring of the Swedish Internet
- Rickard Dahlstrand

4. EGEE Project
- Loukik Kudarimoti

5. Discussion on the Consumer Broadband Measurements draft
- Henk Uijterwaal

6. Measuring multicast on the Internet with TTM
- Gert Doering

7. AOB


1. Administrivia
No comments on the minutes from the RIPE50 meeting, so these are now

2. TTM Status and Plans
Henk proxied the status of the TTM project from Ruud de Kooter (OPS
TTM service is running stable and OPS are looking into running the service
more efficient.

3. Building a solution for active monitoring of the Swedish Internet
- Presentation at:

Q1: Heinrich Hauser, Amadeus. He thanks Rickard for his presentation and
the work he did. He works for a company who is a big consumer of the
Internet. He commented that he would like to see such measurements done
for the whole Internet.
A1: Ok

Q2: Ruben van Staveren, RIPE NCC. He asked if Rickard considered using
priority queuing with PF, so that the measurement packets wouldn't
suffer from the traffic of users.
Q2: No, he didn't.

4. EGEE Project
- XXX URL of presentation missing XXX
Andrei Robachevsky, RIPE NCC: What exactly did you use the TTM data for?
XXX I missed the answer here XXX

5. Discussion on the Consumer Broadband Measurements draft
- Henk Uijterwaal
- Document discussed at:

Dave Wilson, HEANET: Feature request, Besides measuring from the home
to the endpoint at your own provider I would also like to measure to
another well known point on the Internet.

Daniel Karrenberg, RIPE NCC: It's probably not a good idea if RIPE NCC
puts machines at peoples home for a service. The ISP's should do that

Andrei Robachevsky: Who would benefit from this?
Daniel Karrenberg:
1. To answer the remark: "There are not enough probes";
2. Demand for more data.
3. Nameserver operators, providers with BPG in multihomes setup.
4. Looking at it from 10km high, I feel operators need a lot more usefull
data if they want to use this for operational purposes.

Marco Hogewoning:
1. This could become too commercial.
2. Does this scale? This might become too much (unuseful) data.

Daniel Karrenberg: These kind of things needs to be measurered
independently, and the RIPE NCC can do that.

Marco Hogewoning: We need to make agreements about QOS. That operators
don't give the measurement traffic a high priority than the normal traffic.

Rickard Dahlstrand: In general, what exactly is the scope of this?

Henk Uijterwaal: We all need to think about that indeed, let's take that
to the mailinglist.

6. Measuring multicast on the Internet with TTM
- Gert Doering

Gert had proposed on the mailinglist to think about measuring multicast
with TTM.
It was agreed that this is interesting and that discussion should continue
on the list.
Possible first step would be to look at how well the current set of
testboxes are multicast connected.

7. AOB

Rickard Dahlstrand: Is interested in more measurement nodes for DNSMON.
Too euro centric currently. Offers help to get more machines in Africa, etc.

Meeting closes at 18:00.

Test Traffic WG @ RIPE51 - Amsterdam.


* RIPE NCC: research the Multicast connectivity of the testboxes
* All: Think about how to get more measurement nodes in TTM


* Proposal to measure Multicast using TTM
* Consumer Broadband Measurements draft send to the list and
shortly discussed in WG
* Discussion on how to measure DNSMON from more nodes worldwide
Henk Uijterwaal Email: henk.uijterwaal(at)
RIPE Network Coordination Centre
P.O.Box 10096 Singel 258 Phone: +31.20.5354414
1001 EB Amsterdam 1016 AB Amsterdam Fax: +31.20.5354445
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