November 2013 - ripe-atlas - mailman.ripe.net

Atlas F.ROOT ping
by Peter Gervai 09 Jan '14

09 Jan '14

Hello, Atlas helped me today first to see a hard-to-detect bug: F-root anycast algo works fine for v4 but fails miserably for v6, as instead of AMSterdam it sends all traffic to some remote island in the pacific. ;-) Seems to be the reverse true for M-root: ipv4 sends me off to nowhere land while v6 is great. A-root follows the F-suit. (C-root is not a good avertisement valie for Cogent, with v4 only address and considerable ongoing pkt loss.) Thanks! Peter

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Six new RIPE Atlas anchors are now active
by Michela Galante 01 Dec '13

01 Dec '13

Dear RIPE Atlas users, We're happy to announce that six more RIPE Atlas anchors have joined the network: us-pao-as5580 is operated by Atrato Networks in Palo Alto, United States us-ewr-as5580 is operated by Atrato Networks in New York, United States de-fra-as5580 is operated by Atrato Networks in Frankfurt, Germany nl-dft-as31019 is operated by Meanie in Delft, Netherlands fr-sxb-as8839 is operated by SdV Plurimedia in Strasbourg, France nl-ams-as3333-2 is operated by RIPE NCC in Amsterdam, Netherlands Anchoring measurements (ping, ping6, traceroute and traceroute6) are scheduled towards these anchors from all the other anchors as well as several hundred probes, providing a continual overview of regional reachability. Results of these measurements are available as raw data in JSON format, and visualised on the map and "seismograph" with many configurable features. You can access the anchoring measurements for all anchors at: https://atlas.ripe.net/anchors/list/ Learn more about RIPE Atlas anchors at: https://atlas.ripe.net/about/anchors/ We would like to thank Job, Paul and Salim who put in a lot of effort to become the first anchor hosts! Kind regards, Measurements Community Building Team RIPE NCC mcb(a)ripe.net

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Space.net (DE) has joined RIPE Atlas anchors
by Vesna Manojlovic 28 Nov '13

28 Nov '13

Dear RIPE Atlas users, We're happy to announce that another RIPE Atlas anchor has joined the network. The new anchor is called de-muc-as5539 and is operated by Space.net in Munchen, Germany. Anchoring measurements (ping, ping6, traceroute and traceroute6) are scheduled towards this anchor from all the other anchors as well as several hundred probes, providing a continual overview of regional reachability. Results of these measurements are available as raw data in JSON format, and visualised on the map and "seismograph" with many configurable features. You can access the anchoring measurements for all anchors at: https://atlas.ripe.net/anchors/list/ Learn more about RIPE Atlas anchors at: https://atlas.ripe.net/about/anchors/ Thank you for participating in RIPE Atlas! Kind regards, Measurements Community Building Team RIPE NCC mcb(a)ripe.net

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First RIPE Atlas anchor since production service now active
by Vesna Manojlovic 28 Nov '13

28 Nov '13

Dear RIPE Atlas users, We are proud to announce that the first RIPE Atlas anchor since this new service went into full production came online yesterday! It is situated in Munich, Germany, and is operated by Space.net. Congratulations on being the first one! Our thanks go to Gert Doering, who put in a lot of effort working alongside the RIPE NCC team through the new procedure, as well as to five other new hosts whose anchors will be activated tomorrow. From now on, we will announce each new anchor as it is activated, together with the anchoring measurements towards them. All RIPE Atlas anchors can be seen on this list and map: https://atlas.ripe.net/anchors/list/ https://atlas.ripe.net/anchors/map/ Kind regards, Vesna Manojlovic Measurements Community Building RIPE NCC

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New on RIPE Labs: Map a RIPE Atlas Anchor
by Vesna Manojlovic 27 Nov '13

27 Nov '13

Dear colleagues, Please find a new article, contributed by Daniel Karrenberg, on RIPE Labs: RIPE Atlas Fun - Map a RIPE Atlas Anchor. https://labs.ripe.net/Members/dfk/map-a-ripe-atlas-anchor It shows some interesting graphs based on RIPE Atlas traceroute measurements. Kind regards, Mirjam Kuehne RIPE NCC

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feature requests
by Mike. 25 Nov '13

25 Nov '13

Philip Homburg Fri Nov 22 11:08:39 CET 2013 > >Hi, > >>On 2013/11/11 19:32 , Mike. wrote: >> Allow me to disable the processing of RA's on IPv6, so that I >> can configure IPv6 statically and not have it overwritten by an >> RA. > >This feature has been requested by a handful of people. However, this >introduces more complexity in the already way too complex network >configuration of the probes. So we like to avoid implementing this >feature. Of course if there is wide spread demand for it, then we will >look into it. > >I should try it sometime, but in theory one way to give the static >address priority is to set all prefixes in the RA to deprecated. On a >'normal' network where you one prefix, it should not make a difference >for any of the other hosts. > >Philip Hi Philip, In the context of ~~I don't know what is going on inside the Atlas probe, so I'll presume an easy solution~~ ... WOuldn't a solution be to just disable the rtsol daemon when static IPv6 addresses are configured? If the probe does not issue a router solicitation request, then it won't receive RA's. Seems to me that somewhere there is a rtsol=enable that could be changed to rtsol-disable and that would resolve the issue. Configuration would still need to be done via IPv4 using DHCP in this instance. But that process is already well documented. As always, thanks for listening. Mike.

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RTT Graphs for UDMs
by Alex Saroyan 25 Nov '13

25 Nov '13

Hi, As far as I understand there is no RTT history/graph for UDMs. I think it could be very usefull to have a graph storing maybe 1-6 month history of RTT for UDMs. I would really appreciate to have such a history of certain RTT values and the look for correlation with operational changes. -- Regards. /Alex Saroyan

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HTTP/HTTPS probe
by Max Tulyev 22 Nov '13

22 Nov '13

Hi All, What about HTTP/HTTPS requests from Atlas probes? I hear it is technically possible. This test can provide statistics about quality and availability of certain websites, as well as the information about content is delivered unmodified, not blocked, correctly/incorrectly cached, etc. Is it possible to enable that kind of probes?

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Very short uptime for some probes
by Mark Delany 22 Nov '13

22 Nov '13

Hi all. I've only been on this list for a relatively short while so this is most likely in an FAQ I should be digging thru... I've noticed that the uptime for some of the physical probes we've installed are very short. According to the control panel, one in particular has connect times of around 2-3 minutes and disconnect times of 4-6 minutes. This cycle is repeated every 10 minutes or so. All day, every day. Superficially that sort of pattern suggests some sort of continuous reboot loop. However, if I ping the probe remotely, I get just an occasional packet loss. Certainly no long gaps that you'd expect from a continuous reboot. That I can ping it remotely also suggests that external connectivity isn't the problem. Besides the periodicity is just too regular and frequent for a routing loss or similar. (In any event, if the network it's on is losing connectivity every 5 minutes I would have plenty of other symptoms.) The problem probe is also reported as getting UDMs assigned and running them so I'm not quite sure how it manages to squeeze those tests in if that connectivity status report is accurate. So my main question is, should I be concerned about the control panel connectivity reports? And if I should be, is there much I can do beyond ensuring the device has good connectivity? Mark.

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Categorize probes (feature request)
by Klaus Darilion 22 Nov '13

22 Nov '13

Hi! Depending on the measurement, sometimes I want a realistic "user's view" which means using probes in residential areas, and sometimes I want a "backbone" view, which mean using probes in the back-bone (good connected) e.g. to measure my access network or my servers without the delay introduced by the probes access network. Thus, it would be cool if the probe selection algorithm allows also to choose "residential" probes or "backbone" probes. Maybe this categorization can be done automatically, or probe owners can be asked to specify the probes connectivity manually. Thanks, Klaus

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UI displays of measurements
by Gilles Massen 22 Nov '13

22 Nov '13

Hi, When you visualize a measurement in the GUI, what data is used for tabs like "Probes" or "Map"? Is that the latest available data from each participating probe, or something else? Gilles -- Fondation RESTENA - DNS-LU 6, rue Coudenhove-Kalergi L-1359 Luxembourg tel: (+352) 424409 fax: (+352) 422473

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Change account email address
by Mike. 22 Nov '13

22 Nov '13

Hi, Is there a way to change the email address that is used to log in to the RIPE Atlas site? I am talking about the email address that is the answer to the prompt: Sign in using your RIPE NCC Access account and not the alert email address used when the probe goes offline for a period of time. Thanks, Mike.

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Sudden raise in UDM credit consumption
by Tarko Tikan 20 Nov '13

20 Nov '13

hey, Has there been a change how UDM probe prices are calculated? I stopped old UDM (1004320) that had following parameters: - v4 ping - 10 probes - 240 seconds, 3 packets, size 500 - 3.0 credits per result, 10800 credits per day When I created identical UDM (1040516) (UDM parameters should really be changeable to there should be possiblity to clone UDM and then modify all parameters) with double amount of probes (20) and same parameters, I'm now suddenly charged 31.25 credits per result. This does not follow the linear logic as only parameter that changed is number of probes. -- tarko

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Power plugs for the Anchor nodes
by Job Snijders 15 Nov '13

15 Nov '13

Dear all, A moment of clarity occurred to me, just before I shipped out some anchor nodes: the power plugs on the back of box (C7 type) won't easily be connected in most datacenter deployments. I found these cute plugs [1], which can be ordered here [2]. Hope this helps others :-) How have others solved the issue? Any ideas on how to get these Anchors to run on 48V DC (for telco-style deployment)? Kind regards, Job [1] - http://www.kempelektroniks.nl/FilesContent/menu/menu000250/images_iecc7adap… [2] - http://shop.kempelektroniks.nl/index.php/accessories/iec-adapters.html

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probe allocations
by Gilles Massen 14 Nov '13

14 Nov '13

Hi, I was wondering how the number of allocated probes is determined for a given UDM. Specifically, I set up a recurring UDM with 50 world-wide probes (DNS), but 110 probes were allocated to the test. While I'm certainly flattered that RIPE Atlas deemed the measurement so worthwhile, the credit consumption was somewhat higher than expected... so what is the logic, and am I able to get (at most) what I requested? best, Gilles -- Fondation RESTENA - DNS-LU 6, rue Coudenhove-Kalergi L-1359 Luxembourg tel: (+352) 424409 fax: (+352) 422473

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Bulk access to the measurements?
by Stephane Bortzmeyer 13 Nov '13

13 Nov '13

A colleague asks me if it is possible to have bulk access to public measurement data. (Properly: otherwise, he could dor a for loop over all measurement IDs but I suspect it is not nice.) I find nothing in the Atlas documentation. Is it because I do not search hard enough or because this possibility does not exist? #BigData

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Archiving user-defined measurements in Atlas
by ivo.vdmaagdenberg＠gmail.com 12 Nov '13

12 Nov '13

Hi, Played a bit with measurements, now I want make some sensible ones and get rid of the rest. In the documentation "How do I stop a user-defined measurement?" there is mention of the 'Archive' option per measurement. I see that option but it is grayed out. The question is: What are the circumstance that grey the option? This holds for the "Forced to Stop", "Stopped" and "Ongoing" UDMs (maybe more...) Kind regards, Ivo

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Feature request: Regularly Publish Names
by Daniel Karrenberg 12 Nov '13

12 Nov '13

Title: Regularly Publish Names Description: Regularly collect all IP addresses referenced in measurement definitions and all results. Reverse resolve the addresses in the DNS. Collect netnames for the addresses from the RIR registration data. Possibly collect other data such as geo-location and ASes announcing. Publish this collected data both in bulk and thru the API indexed by IP. A frequency of once every 24 hours would be sufficient to stat with. Use: When analysing measurements from the past it is important to have meta information that was current at the time of the measurement. Having this data collected in advance often also allows for more efficient analysis and more responsive tools. Perceived complexity: Low. Use hadoop to collect the list of IPs. Then run a low priority job to collect the meta data. The job also has high potential for parallelism. Perceived cost: Low. Just some cycles and storage on the back end.

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need higher timeout value for ping
by Dave . 08 Nov '13

08 Nov '13

Hi, I did send a mail to atlas(a)ripe.nl. I never received an answer although it's 19 days ago. Not sure if staff is reading here, but let's see. This graph shows pings to a mobile device. A device connected to a mobile network. As mobile networks need to do paging and need some time to re-establish the radio connection, more time is needed for the packets in the first 2 or 3 seconds to get through. My request is to consider making a configurable timeout value for pings? For mobile networks a typical RTT for a first packet would be some 3 seconds. There are however buffers in a typical mobile network which store packets up to 30 seconds in case multiple pagings would fail. I really would like to be able to have a timeout maximum of just over 30 seconds but I could understand if you would limit on 5 seconds. Below, I kept a continuous ping open parallel to the Atlas tests in the marked timeframe. Therefore no paging was needed as the radio channel was kept open all the time. It seems the current timeout is 2 or 3 seconds. Regards, Dave Boonstra. [image: Inline afbeelding 1]

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News about RIPE Atlas anchoring measurements
by Vesna Manojlovic 07 Nov '13

07 Nov '13

Dear colleagues, at the RIPE67 we announced that RIPE Atlas anchors are now ready for the next stage -- full production service. Since then, we already got 10 applications! Currently there are 15 anchors deployed, there is a full-mesh of measurements between the anchors, and we are scaling up the "anchoring" measurements from hundreds of probes towards each anchor, to provide the map of regional reachability. We are now looking for more interested hosts, in new locations. Please find out more details of the benefits of hosting an anchor, technical requirements and available features in RIPE Labs article: https://labs.ripe.net/Members/suzanne_taylor_muzzin/announcing-the-ripe-atl… Regards, Vesna

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msm_name in DNS measurements?
by Gilles Massen 07 Nov '13

07 Nov '13

Hello, I just stumbled over a field 'msm_name' in a DNS UDM - but it's apparently undocumented (at https://atlas.ripe.net/doc/data_struct#v4540_dns ). What could it contain (except 'Tdig')? (and would it be possible to add it to the documentation?) best, Gilles -- Fondation RESTENA - DNS-LU 6, rue Coudenhove-Kalergi L-1359 Luxembourg tel: (+352) 424409 fax: (+352) 422473

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Discussing IPv6 extension headers feature on mat-wg
by Vesna Manojlovic 06 Nov '13

06 Nov '13

Hi RIPE-Atlas-users, one of the features often requested to add to RIPE Atlas is "enable IPv6 extension headers". We would like to know the details of your needs, so please join the discussion on the MAT-WG that Jens started: https://www.ripe.net/ripe/mail/archives/mat-wg/2013-November/000364.html (I am deliberately not copying the text here, please keep the discussion on one list...) Thank you for your input! Vesna

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Fwd: UDM/Credit troubles
by Alex Saroyan 01 Nov '13

01 Nov '13

Hi, I faced some troubles today using Atlas. My running credit consumption was 0 because all UDMs were stopped already for few days(screenshot attached). I have defined 2 UDMs (16 Pings from 12 Probes - nothing special - nothing big - about 300 credits) - they failed to start with no reason (screenshot attached). When defining 3-rd similar UDM, I've got message saying my current consumption is 276800 and no credit available to start an 300 credit UDM.(screenshot attached) It seems to me that some UDM is stuck, it is stopped but Atlas credit system thinks that it is running. So I faced two troubles 1-st regarding mysterious failed UDM and 2-nd regarding credit consumption. -- Regards. /Alex Saroyan

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