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New items and updates are in boldface. Action/discussion items are in red

Coordinates of team members:

...

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  • Topher is back, Bebo is contacting him. Bebo's thoughts were that:
    •  If the Amity app is robust  (i.e. it does not noticeably impact the other services, power, networking, security etc) make it part of the standard Rainforest installation;
    • Topher's package knows the GPS location, so it should be available to PingER for recording.
  • PingER will need a fixed name for each Android MA.  Since the Android may be mobile the IP address may be dynamic. There is a DNS name to dynamic IP address service that may be useful. Maybe there is another unique fixed identifier in an Android that could be used such as a serial number or SIM ID.

...

NUST: 

Wajahat suggested a letter to the higher-ups at NUST about PingER would assist.  Les worked with Wajahat to craft such a letter. It was sent to Wajahat by email 4/3/2019.  It was sent by paper mail 4/4/2019 to Principal SEECS.

  • Wajahat said the letter has been received and a written response is being drafted.
  • They (NUST) would also be interested in other collaborations with SLAC
    • Since Les is no longer an employee of SLAC but rather an emeritus this may complicate things.
    • A possibility might be in high-speed data transfer. It would need a champion from NUST, and a plan and funding to provide access to 100Gbps

 

IPv6 host at NUST:

Wajhat Wajahat has requested Hasan to install PingER on an IPv6 host at NUST, Saqib has contacted Hasan to tell him where to find and upload the code. Any progress?

 UAF (University of Agriculture, Faisalabad)/GHZU (Updated 3/3/2019)

Saqib joined the University of Agriculture in Faisalabad. He plans to pursue the blockchain paper.

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

Thailand, Charnsak

Charnsak is looking at a host in Champasak University, Chan Parsa province in Laos as a potential site for a PingER MA. Charnsak just got approved to make contact with the Champasak University. He expects to set up the MA in the next 4-5 months (say towards end 2018). It also depends on the partner university, and there may be a lot of paperwork. 4/9/2019 Charnsak said we need to drop this.

UNIMAS

Need to add Umar Kalim to http://pinger.unimas.my/pinger/contact.php. From the 7/5/2018 meeting: Johari can't ssh into the server so he will go to it on Monday.  He will also upload the new UNIMAS PingER website next week.

Email from Johari 4/21/2019:  I am  still very much interested in the project but I have to manage my time better. Will try to join the next meeting and probably get someone from my side to monitor the equipment and make use of the data collected

 

PingER at SLAC  

Umar fixed up the PingER deployment map at http://wanmon.slac.stanford.edu/wan-mon/viper/pinger-coverage-gmap.html by updating the Google map key.

State of MAs.

Host

State

last seen

Status

rainbow.inp.nsk.su

email sent 4/25/2019

April 17, 2019

 

brunsvigia.tenet.ac.za

Len Lotz the contact is working on moving MA to a VM

April 17, 2019

Move to VM

pingeramity.in

Unable to gather data since March 29, 2019, unable to ping it, sent email 4/3/2019, got response (4/3/2019) they will look into it.

March 29, 2019

Fixed 4/5/2019

rainbow.inp.nsk.su

Unable to gather data starting March 19, 2019. The host is pingable and web is responding. Email sent 4/3/2019. Recommend update ping_table.pl

March19, 2019

Fixed 4/3/2019

pinger6.cs.ubru.ac.th

Stopped being pingable 2/25/2019. Thus by default the gathering failed. Gathering also fails to http://202.29.20.125/cgi-bin/ping_data.pl . Emailed Charnsak 3/4/2019, 3/15/2019.

2/25/2019

Fixed 3/16/2019.

pinger.isra.edu.pk

Down, it came up Sep 2-4, 2018. It is pinging, however, all the targets are not responding after 31 tries, email sent to Wajahat 9/18/2018. As of 10/14/2018 it is not pingable. Working again as of 1/5/2019.

It started again1/26/2019. It does not respond to pings from SLAC but does respond to http://pinger.isra.edu.pk/cgi-bin/ping_data.pl? which is used to get the data.  However, the data indicate that none of the pings respond, e.g.

pinger.isra.edu.pk 121.52.154.228 pinger.fsktm.um.edu.my 103.18.2.152 100 1548633600 31 0

i.e. all 31 pings fail and  0 give any response.

When one tries to ping from pinger.isra.edu.pk using http://pinger.isra.edu.pk/cgi-bin/traceroute.pl?function=ping&target=www-wanmon.slac.stanford.edu&options=-i%200.2 the web page responds but all pings from isra fail. Email sent to Wajahat 1/28/2019. Started working again 1/30/2019. Stopped being pingable and unable to gather data 2/11/2019. 3/2/2019 can gather data but all the pings are failing. This is not a normal failure mode. Emailed Wajahat 3/3/2019, 3/15/2019.

March 6, 2018

Fixed 1/5/2019

Failed again starting 1/26/2019.

Working again 1/30/2019

maggie1.seecs.edu.pk

Unable to gather data since March 26, 2019

March 26, 2019

 

cae.seecs.edu.pk

At the request of Wajahat re-enabled but unable to gather data

Over a year ago

Disabled 4/17/2019

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.

Next Meeting

Next meeting:  There will be a Doodle poll, May week 13th-16th 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.  Any thoughts on time of day. There does not appear to be anyone recently attending from India, Malaysia, China,  and Thailand. How about 9am Pacific time, 9pm Pakistan time, 6pm Jordan time, 5pm Turkey time all on the same date.

There is not a host name for the MA yet. Hopefully, this will be available by next month's meeting.

Wajahat has 2 students, he will propose some PingER related projects to them.

Wajahat said that contacts at some sites are not very interested in PingER and wonder why there are so many pings. Thus he believes we need new sites representing the regions of Pakistan that have willing collaborators. Thus we should give up on sites such as CAE and ISRA that have not had any data to gather for a year or so.  Les has since disabled these sites.

 UAF (University of Agriculture, Faisalabad)/GHZU (Updated 3/3/2019)

Saqib joined the University of Agriculture in Faisalabad. He plans to pursue the blockchain paper.

Thailand, Charnsak

Charnsak is looking at a host in Champasak University, Chan Parsa province in Laos as a potential site for a PingER MA. Charnsak just got approved to make contact with the Champasak University. He expects to set up the MA in the next 4-5 months (say towards end 2018). It also depends on the partner university, and there may be a lot of paperwork. 4/9/2019 Charnsak said we need to drop this.

UNIMAS

Need to add Umar Kalim to http://pinger.unimas.my/pinger/contact.php. From the 7/5/2018 meeting: Johari can't ssh into the server so he will go to it on Monday.  He will also upload the new UNIMAS PingER website next week.

Email from Johari 4/21/2019:  I am still very much interested in the project but I have to manage my time better. Will try to join the next meeting and probably get someone from my side to monitor the equipment and make use of the data collected

SLAC  

Umar fixed up the PingER deployment map at http://wanmon.slac.stanford.edu/wan-mon/viper/pinger-coverage-gmap.html by updating the Google map key.

State of MAs.

Host
State
last seen
Status
rainbow.inp.nsk.suemail sent 4/25/2019April 17, 2019 
brunsvigia.tenet.ac.zaLen Lotz the contact is working on getting his people to move MA to a VMApril 17, 2019Move to VM
pingeramity.inUnable to gather data since March 29, 2019, unable to ping it, sent email 4/3/2019, got response (4/3/2019) they will look into it.March 29, 2019Fixed 4/5/2019
rainbow.inp.nsk.suUnable to gather data starting March 19, 2019. The host is pingable and web is responding. Email sent 4/3/2019. Recommend update ping_table.plMarch19, 2019Fixed 4/3/2019
pinger6.cs.ubru.ac.th

Stopped being pingable 2/25/2019. Thus by default the gathering failed. Gathering also fails to http://202.29.20.125/cgi-bin/ping_data.pl . Emailed Charnsak 3/4/2019, 3/15/2019.

2/25/2019Fixed 3/16/2019.
pinger.isra.edu.pk

Down, it came up Sep 2-4, 2018. It is pinging, however, all the targets are not responding after 31 tries, email sent to Wajahat 9/18/2018. As of 10/14/2018 it is not pingable. Working again as of 1/5/2019.

It started again1/26/2019. It does not respond to pings from SLAC but does respond to http://pinger.isra.edu.pk/cgi-bin/ping_data.pl? which is used to get the data.  However, the data indicate that none of the pings respond, e.g.

pinger.isra.edu.pk 121.52.154.228 pinger.fsktm.um.edu.my 103.18.2.152 100 1548633600 31 0

i.e. all 31 pings fail and  0 give any response.

When one tries to ping from pinger.isra.edu.pk using http://pinger.isra.edu.pk/cgi-bin/traceroute.pl?function=ping&target=www-wanmon.slac.stanford.edu&options=-i%200.2 the web page responds but all pings from isra fail. Email sent to Wajahat 1/28/2019. Started working again 1/30/2019. Stopped being pingable and unable to gather data 2/11/2019. 3/2/2019 can gather data but all the pings are failing. This is not a normal failure mode. Emailed Wajahat 3/3/2019, 3/15/2019.

March 6, 2018

Fixed 1/5/2019

Failed again starting 1/26/2019.

Working again 1/30/2019

Disabled 4/28/2019

maggie1.seecs.edu.pkUnable to gather data since March 26, 2019March 26, 2019 
cae.seecs.edu.pkAt the request of Wajahat re-enabled but unable to gather dataOver a year agoDisabled 4/17/2019

Umar compare ICMP and TCP Ping

Umar is looking at the scamper project from CAIDA, see https://www.caida.org/tools/measurement/scamper/. Les will put Umar in contact with the scamper folks (email sent 4/28/2019)

Unfortunately, for the IPv4 vs IPv6 comparison, there is insufficient data (i.e. only about targets)

Next Meeting

Next meeting:  There will be a Doodle poll, May week 13th-16th 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.  This conflicts with Ramadan, so Umar cannot make it. Ramadan begins May 5th and ends June 4th

...

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 KhaledOld information

Adib moved here 4/20/2019

Adib moved to Karabuk University in Turkey where he is an Associate Professor.  

...