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- + Responded via Doodle can attend; - Responded, but unable to attend on this date; ? extra email sent asking if attending
- Email addresses (all the following are in pinger-my).
- cottrell@slac.stanford.edu; wajahat.hussain@seecs.edu.pk; saqibutm@outlook.com; johari.abdullah@gmail.com; adibhabbal@karabuk.edu.tr; charnsak.s@ubru.ac.th; eyadayoubi@gmail.com; b.muslmani@yahoo.com; shadi.jawarneh@yahoo.com; bebo@slac.stanford.edu; umar.kalim@gmail.com; xsaifahmadx@gmail.com
Actual Attendees
Saqib, Wajahat, Les
Others
Administration
- Dr. Umar Kalim has left SLAC to join Amazon. He will continue to be in the Bay Area. He will continue to be involved in the PingER project.
- Bebo's SLAC account expires March 2020. He will be able to renew it, since he will no longer be a SLAC employee. As a result Bebo will likely let his participation in PingER lapse.
- This meeting was scheduled with the aid of a Doodle poll.
...
- Les retired, still active.
- Bebo's SLAC account expires early 2020, he will bow out then.
- Topder Topher busy getting funding etc.
- Umar has left SLAC, but still involved.
- In the over two decades since PingER started, the Internet and wide area networking have changed dramatically
- Speeds, deployment, reliabiiltyreliabililty, number of users and applications have improved exponentially
- There are lots of other monitoring tools nowadays: perfSONAR, ISP monitoring, Akamai
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Next meeting: There will be a Doodle poll, for July August 8-11 or July or July 8-11pm or August 15-18 at 10 pm Pacific time; a day later 10:00 am Pakistan time; 10:30 am India time; 1:00 pm Malaysian & Guangzhou time; 2:00 pm Thailand time; 7:00 am Jordan time. 6:00am Turkey time.
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Old information
Umar moved here 4/28/2019
Umar Compare ICMP and TCP ping
No update to the following 3/14/2019.
Context:
Is there any statistical difference between ICMP and TCP Ping? The context here is the Internet (not data center). This is important because the network stack is different (e.g., MPI over infiniband) and latencies are significantly less.
Questions:
Why should we focus on minimum RTT instead of average RTT
Min RTT essentially reflects fixed delay, while average RTT subsumes variations and path load
Link to raw results with minRTT results:
https://drive.google.com/open?id=1ZPgljFCDFcsVUxEFA6NYMjhayoqYtMYi
Are the R plots generated using minRTT?
Averages and computed. Min RTT is available. Scripts need to be updated to use minRTT.
What is the breakdown of latency between endpoints? If there is a difference, is it because of the type or location of the source? What if the source of traffic was not SLAC? Is there a correlation with the distance between the endpoints?
Latency for an echo packet to travel up the stack and back down is about 3.75 micro seconds (see StackMap https://www.usenix.org/conference/atc16/technical-sessions/presentation/yasukata). As expected, this is negligible when considered with milli second latencies.The remaining components would be propagation and queuing delay. As we can not breakdown the two in a public network without using an active look like
To replicate use system tap. See: https://unix.stackexchange.com/questions/419449/how-can-i-determine-if-a-latency-is-due-to-a-driver-or-the-scheduler
pathchirp etc, we'll continue to consider these as a single component.
Are the differences limited to a particular region? How do we determine/understand if traffic prioritization is implemented? Test in a controlled environment to avoid variables such as traffic prioritization, queuing delay due to cross traffic. Review the time series of latencies for both ICMP and TCP ping, instead of averages?Is there a difference between IPv4 measurements vs. IPv6.
It may be that end hosts which are farther away have larger variances and thus the pronounced differences.
Saqib moved here 4/28/2019
Bebo sent email, see below. Saqib will follow up.
Not sure whether this would be relevant for PingER work - maybe Saqib's blockchain paper? I'm not sure that there has been much discussion re: PingER security - thoughts? The submission is due May 24th
Bebo
From: Security and Communication Networks <scn@journals.hindawi.com>
Sent: Monday, February 25, 2019 11:58 PM
To: White, Bebo
Subject: Special Issue: "Cryptography and Security Tools and Techniques for Networked Embedded Systems"
Dear Dr. White, We are currently accepting submissions for our upcoming Special Issue titled
"Cryptography and Security Tools and Techniques for Networked Embedded Systems," which will
be published in Security and Communication Networks in October 2019. The Special Issue is open to both
original research articles and review articles, and the deadline for submission is May 24, 2019.
You can find the Call for Papers at https://www.hindawi.com/journals/scn/si/136986/cfp/.
Security and Communication Networks is a peer-reviewed journal published by Hindawi
as part of a publishing collaboration with John Wiley & Sons (https://www.hindawi.com/wiley.hindawi/).
Starting January 2017, the journal has been converted to a fully open access publication, which
means that anyone can access it online without a subscription and authors retain the copyright of their work.
The most recent Impact Factor for Security and Communication Networks is 0.904 according to Clarivate Analytics' l
atest Journal Citation Reports. The journal's most recent CiteScore is 1.36 according to the latest
CiteScore metrics released by Scopus. Please read over the journal's author guidelines at
https://www.hindawi.com/journals/scn/guidelines/ for more information on the journal's policies and
the submission process. Manuscripts should be submitted online to the Special Issue at
https://mts.hindawi.com/submit/journals/scn/adcsc/.
Please do not hesitate to contact me if you have any questions. Best regards, Rana Khaled
Adib moved here 4/20/2019
Adib moved to Karabuk University in Turkey where he is an Associate Professor.
The time difference would probably require a change in meeting time (e.g. 10:00 pm SLAC = 6:00 am Turkey)
He will discuss with the department head about installing a PingER MA there.
Regarding the paper, it has been submitted to Journal: Computer Communications
Title: Socio-economic Development Indices and Their Reflection on Internet Performance in ASEAN Countries
Corresponding Author: Adib Habbal
Co-Authors: Les Cottrell, Emmanuel Mkpojiogu, Bebo White, Suhaidi Hassan, Faisal Zulhumadi
Unfortunately, it was rejected.
Adib, Bebo and Les are looking for another journal, some possibilities include: https://webscience-journal.net/webscience,
https://www.journals.elsevier.com/business-horizons, https://www.journals.elsevier.com/government-information-quarterly
NUST moved here 4/18/2019
Wajahat raised the topic: We also need to formulate some research problems that have the potential of appearing in some well-known places. This might help in attracting NUST students which is getting harder these days. I need your help in this regard.
Discussion . (Wajahat was this useful? Is there something else? Email sent 3/15/2019):
There is a web page at Future PingER Projects which was last updated July 2018. Topics that currently stand out include:
Applying Blockchain to PingER data, see the paper by Saqib, here.
Graphical traceroute maps. Note currently when one looks up the location of a router, it usually gives the location of the home site that is managing the routers, e.g. ESnet routers in the US and Europe are all identified as being at LBL. Using ping minimum RTTs to a router from multiple sites (e.g. the perfSONAR traceroute servers in the US, Canada, and Europe, see http://www.slac.stanford.edu/comp/net/wan-mon/viper/tulipmap.html) one can use trilateration to identify the location of the router. Earlier work on this can be found at http://www.slac.stanford.edu/comp/net/tulip/
Deploying Android/Pinger devices, understand how their low cost (cheap enough to be disposable), low power (e.g. use of solar power) and potential mobility may be used, i.e. the risks, mitigations, and benefits.
Linked Open Data applied to PingER data.
Using PingER data as a source of big data to search anomalies, trends etc.
Case studies, e.g. can one identify the impact on networking of social unrest such as the current Venezuala difficulties, or of other events such as earthquakes or Tsunamis.
I have increased the number of working Venezuelan target hosts monitored from SLAC from 3 to 8, to possibly assist in this.
Another interesting case study would be to look at the impact of hurricanes on Internet connectivity in say the Caribbean, see for example Hurricanes Irma and Maria 2017.
Compare and contrast IPv6 with IPv4 behavior, identify outliers and understand - Umar, Les, and Saqib are looking at this.
Also, see PingER Papers and Presentations for some topics that have recently resulted in papers.
Are any of these of interest?
Amity moved here 4/18/2019
The following are the data analysis projects:
Title (tentative): Correlation Analysis between network performance and GDP of a country using PingER data. Abstract (tentative):
This paper aims towards finding the correlation between Gross domestic product (GDP) of a country and it’s network performance (ping analysis)
using PingER data. Email ID: Naman Madan, naman.madan25@gmail.com
Title (tentative): Comparison of network performance of India and Pakistan using PingER data. Abstract (tentative):
This paper aims at comparing the network performance of India and Pakistan using the PingER network performance data of 2-3 years of both the countries and applying clustering to the year-wise data. Comparing the number of components in each cluster will help in concluding the quality of the network performance. More the number of the components, with the least average RTT, better the performance. Email ID: Vishwani Sati, vishwani.sati@gmail.com
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