[Nfd-dev] 1-to-Many NDN-RTC test and hub strategy

[Junxiao Shi]

Hi Peter

Can you confirm the prefix registrations are successful?
Execute `nfd-status -fr` on the HUB during the experiment, and paste the output.

Yours, Junxiao

> On May 27, 2016, at 11:40 AM, Gusev, Peter <peter at remap.ucla.edu> wrote:
> 
> Hi Junxiao,
> 
> I started to run tests with NDN-RTC docker image and first, tried simple topologies - 1-to-many. 
> The topology is the following:
> 
> P — H — C1
> |——C2
> |——C3
> |——…
> |——CN
> 
> where P - producer, H - hub and Ci - i-th consumer.
> 
> I.e. all consumers are connected to the same hub.
> Hub registers prefixes like /ndn/edu/ucla/remap/ndnrtc/user/clientX where clientX - is an NDN-RTC user name for one of the [P, C1, C2, … CN] (for example, publisher publishes under client1 username). I don’t alter any strategies, so by default, Hub uses best-route.
> 
> I tried 1-to-2 topology but noticed that only one of the consumers received data (see results here <http://ec2-52-90-158-238.compute-1.amazonaws.com:3000/dashboard/db/ndn-rtc-test-metrics?from=1464329468261&to=1464329772934> login/pw: guest/ndnguest) - around 23:14:47 I changed strategy to multicast on the router and all clients were able to receive the data.
> I run same experiment for 1-to-4 topology and got same results <http://ec2-52-90-158-238.compute-1.amazonaws.com:3000/dashboard/db/ndn-rtc-test-metrics?from=1464330005051&to=1464330909765> (changed strategy at around 23:21:30). 
> …same <http://ec2-52-90-158-238.compute-1.amazonaws.com:3000/dashboard/db/ndn-rtc-test-metrics?from=1464335773279&to=1464336374031> with 1-to-10 (changed strategy at 00:56:40).
> 
> Can you please advise on how hub should be configured for this test-scenario? Is it the known issue with best-route when interests from other clients are suppressed as being treated as retransmissions? Shouldn’t each consumer have it’s own face on the hub?
> 
> I looked into log files - some data arrives - segments of key frames that were requested by rightmost interest.
> 
> Thanks, 
> 
> -- 
> Peter Gusev
> 
> peter at remap.ucla.edu <mailto:peter at remap.ucla.edu>
> +1 213 5872748
> peetonn_ (skype)
> 
> Software Engineer/Programmer Analyst @ REMAP UCLA
> 
> Video streaming/ICN networks/Creative Development
> 

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