[ndnSIM] Testbed nodes geographical locations in mini-ndn

[Spyridon (Spyros) Mastorakis]

In terms of results, I do not think it will make any difference (the thing that will make a difference is the link delay).

Since results should not be affected and it seems this is a visual problem, if you need that for a paper, you can take a screenshot of the testbed from the testbed webpage and put it in your paper to demonstrate the topology.

Topologies in ndnSIM are created based on x, y coordinates. I am not sure if you can covert angle and radius to x, y coordinates somehow (sorry, I have not taken any math classes since the time I was an undergrad).

Hope this helps,

Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department
UCLA

> On Jan 26, 2019, at 10:42 AM, Ertugrul DOGRULUK <ertugruldogruluk at hotmail.com> wrote:
> 
> Hi Spridon,
> 
> The problem is printing the topology with real locations. For example, one node located at USA and the OTHER one located in EU, when I tried to print the topology these nodes ends next to each other, I think, they based on link delays not real distances.
> 
> So the questions are: Are X amd Y coordinates effects the results or not? How can I get real coordinates from this file (https://github.com/named-data/mini-ndn/blob/master/topologies/current-testbed.conf <https://github.com/named-data/mini-ndn/blob/master/topologies/current-testbed.conf> ).—The created for angle and radius also does not any make sense because node coordinates are not ok, for example UCLA and MINHO angle and radius. 
> 
> Kindly Regards
> Ertugrul Dogruluk
> PhD Candidate 
> Centro Algoritmi/ University of Minho-PORTUGAL
> http://algoritmi.uminho.pt/ <http://algoritmi.uminho.pt/>
> 
> 
>> On 26 Jan 2019, at 16:40, Spyridon (Spyros) Mastorakis <mastorakis at cs.ucla.edu <mailto:mastorakis at cs.ucla.edu>> wrote:
>> 
>> Hi,
>> 
>> if you can figure out the average delays of the testbed links, you can create a text file that reproduces the topology based on the link delays.
>> 
>> I do not understand if your problem has to do with how things look or it is a concern that can impact the simulation results.
>> 
>> Thanks,
>> 
>> Spyridon (Spyros) Mastorakis
>> Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
>> Internet Research Laboratory
>> Computer Science Department
>> UCLA
>> 
>>> On Jan 22, 2019, at 10:15 AM, Ertugrul DOGRULUK via ndnSIM <ndnsim at lists.cs.ucla.edu <mailto:ndnsim at lists.cs.ucla.edu>> wrote:
>>> 
>>> Dear ndnSIM developers, 
>>> https://github.com/named-data/mini-ndn/blob/master/topologies/current-testbed.conf <https://github.com/named-data/mini-ndn/blob/master/topologies/current-testbed.conf> 
>>> 
>>> The locations of nodes are not correct when I do —vis. For example, “minho” node is locates next to the “ucla”. I do guess they are based by link delays by radius and angles (even I converted them for x and y, they are almost the same). Is there any way to get real geographical ndn-testbed locations by ndnSIM. 
>>> 
>>> 
>>> Kindly Regards
>>> Ertugrul Dogruluk
>>> PhD Candidate 
>>> Centro Algoritmi/ University of Minho-PORTUGAL
>>> http://algoritmi.uminho.pt/ <http://algoritmi.uminho.pt/>
>> 
> 

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