[Mini-NDN] result of a topology

[Ashlesh Gawande (agawande)]

No, the figure of the paper should be possible to achieve. The CPU is the bottleneck because one has to run 6 NFD, 6 NLSR instances on a single machine. I have run a 10 node pingall experiment on a VBox VM with 2.5GB RAM and 2 CPUs without so much variation.


To turn off the logs:

Change DEBUG to NONE here:

https://github.com/named-data/mini-ndn/blob/master/ndn/nlsr.py#L123


and make sure that this also set to NONE:

https://github.com/named-data/mini-ndn/blob/master/ndn/nfd.py#L34


Then reinstall Mini-NDN, sudo ./install.sh -i


Also make sure that in your topology file all the log levels are set to NONE if there is such an option after the nodes.


Then try to run the experiment again (If possible turn off the GUI in VM, i.e. login in to command line and run the experiment from there - just to free up some more CPU).


In your graph the y-axis is the RTT in ms? What are the delays you have set on the links of the topology?

(If possible, can you share the topology file?)


Ashlesh

________________________________
From: sepehr abdous <sepehrabdous1375 at gmail.com>
Sent: Saturday, November 19, 2016 12:48:23 AM
To: Ashlesh Gawande (agawande)
Cc: mini-ndn at lists.cs.ucla.edu
Subject: Re: [Mini-NDN] result of a topology

Hello,
no there aren't any timeouts and what you see there is not a zero it is 10^0 which is equal to 1.
I'm running my linux on a vmware virtual machine with the configurations bellow:
[Inline image 1]
so you're saying that this results which I've got in my figure is reasonable for the topology and it shouldn't exactly be like the figure in the paper?
Thank you

On Fri, Nov 18, 2016 at 4:53 PM, Ashlesh Gawande (agawande) <agawande at memphis.edu<mailto:agawande at memphis.edu>> wrote:

Have you verified that the ping data is correctly depicted on your figure?

Are there any timeouts in there? Because I see some zeros.


RTT can be have variation in Mini-NDN because of multiple NFDs are running on the same machine.

What is your current machine configuration?

Usually for such a small topology it should not be a problem.


One thing you can try is that if you are collecting NFD, NLSR, or any other logs, turn them off.

That is turn off all the logs except the ping data.


Other thing to try is to use a machine with more CPU power.


Ashlesh

________________________________
From: Mini-NDN <mini-ndn-bounces at lists.cs.ucla.edu<mailto:mini-ndn-bounces at lists.cs.ucla.edu>> on behalf of sepehr abdous <sepehrabdous1375 at gmail.com<mailto:sepehrabdous1375 at gmail.com>>
Sent: Friday, November 18, 2016 6:48:35 AM
To: mini-ndn at lists.cs.ucla.edu<mailto:mini-ndn at lists.cs.ucla.edu>
Subject: [Mini-NDN] result of a topology

Hello all,
I'm new to mini-ndn and I'm trying to implement the following topology:
[Inline image 1]
so I use minindnedit to implement it with the following information:
[Inline image 2]
and based on the paper which represents this topology it is expected to get this figure from it's information:
[Inline image 3]
which the blue "+" represents the ping-data in the case that no node fails, but when I try to implement it using pingall experiment my figure will come out like this:
[Inline image 4]
as you can see there is more swing in the blue '+'s than it is expected, any idea why it is happening?
thank you

--
Sepehr Abdous
Faculty: abdous at ce.sharif.edu<mailto:abdous at ce.sharif.edu>
Yahoo mail: sepehrabdous at yahoo.com<mailto:sepehrabdous at yahoo.com>
Cellphone:+989194030591
School of computer engineering
Sharif University of Technology
Tehran, Iran



--
Sepehr Abdous
Faculty: abdous at ce.sharif.edu<mailto:abdous at ce.sharif.edu>
Yahoo mail: sepehrabdous at yahoo.com<mailto:sepehrabdous at yahoo.com>
Cellphone:+989194030591
School of computer engineering
Sharif University of Technology
Tehran, Iran
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