[Ndn-interest] miniNDN: nack, no route [solved]

[bertolin at eurecom.fr]

I solved, thank you for your help!
For other noob like me, just launching minindn with the custom topology, ex.
sudo minindn ./ndn_utils my_topology.conf,
then starting the ndnpingserver with the command suggested by Junxiao
>> b ndnpingserver /ndn/edu/b &, then after some time make the ping from a.
a ndnping -c 4 /ndn/edu/p

I know that my question was not so smart but I am understanding a bit more,
thank you to all.
Matteo

Quoting Matteo Bertolino <Matteo.Bertolino at eurecom.fr>:

> First of all, thank you very much Junxiao.
> I'm shaming about my future question but I have to do it, sorry.
>
> I launch the program from my console in this way:
> sudo minindn --experiment=pingall --nPings=10   
> ./ndn_utils/topologies/try1.conf
> I understand that the pingserver is necessary on B, but in which way I
> can execute this command? If I start the console and I execute your
> command, I have not more the possibility of executing the experiment
> pingall.
>
> Moreover, I am following the following tutorial, in the Installation section:
>
> You can use these steps to verify your installation:
>
> Issue the command: sudo minindn --experiment=pingall --nPings=50
> When the mininet> CLI prompt appears, the experiment has finished. On
> the Mini-NDN CLI, issue the command exit to exit the experiment.
> Issue the command: grep -c content /tmp/*/ping-data/*.txt. Each file
> should report a count of 50.
> Issue the command: grep -c timeout /tmp/*/ping-data/*.txt. Each file
> should report a count of 0.
>
> I understood why my scenario does not work, but I do not understand how
> to run the pingserver on node B and launch the pre-built experiment in
> the meantime. Thank you .
> Yours Matteo
>
> Quoting Junxiao Shi <shijunxiao at email.arizona.edu>:
>
>> Hi Matteo
>>
>> ndnpingserver needs to be running on node B. Otherwise, NFD on node  
>>   B will return Nack-NoRoute because /ndn/edu/b/ping doesn't match   
>> any  FIB entry.
>>
>> Start ndnpingserver with this command:
>> b ndnpingserver /ndn/edu/b &
>>
>> Yours, Junxiao
>>
>> -----Original Message-----
>> From: "Matteo Bertolino" <Matteo.Bertolino at eurecom.fr>
>> Sent: ?9/?6/?2016 4:49
>> To: "ndn-interest at lists.cs.ucla.edu" <ndn-interest at lists.cs.ucla.edu>
>> Subject: [Ndn-interest] miniNDN: nack, no route
>>
>> Good morning NDN community,
>> I choose miniNDN to begin my experience, but surely for my poor use of
>> the tool, I am obtaining unexpected results.
>> I launched the program already written pingAll in a my personal
>> topology composed by two nodes connected by a link.
>>
>> It is a simple scenario, but I have the same following problem with
>> the default topology: all the requests are nacked. For example:
>> PING /ndn/edu/b
>> 20160906T113355.728806 - nack from /ndn/edu/b: seq=7022016325669868656
>> time=25.3841 ms reason=NoRoute
>> [...]
>> 10 packets transmitted, 0 received, 10 nacked, 0% packet loss, 100%
>> nacked, time 0 ms
>>
>> NLSR converged successfully, and the FIB table of A and B seems ok.
>> However I wrote them below.
>>
>> mininet> a nfd-status -b
>> FIB:
>>   /ndn/NLSR/sync nexthops={faceid=257 (cost=0), faceid=260 (cost=10)}
>>   /localhost/nfd/rib nexthops={faceid=256 (cost=0)}
>>   /ndn/NLSR/LSA nexthops={faceid=260 (cost=10)}
>>   /ndn/broadcast/KEYS nexthops={faceid=257 (cost=0), faceid=260 (cost=10)}
>>   /ndn/NLSR/LSA/edu/%C1.Router/cs/a nexthops={faceid=257 (cost=0)}
>>   /ndn/edu/%C1.Router/cs/b nexthops={faceid=260 (cost=10)}
>>   /localhost/nfd nexthops={faceid=1 (cost=0)}
>>   /ndn/edu/b nexthops={faceid=260 (cost=10)}
>>   /localhost/nlsr nexthops={faceid=257 (cost=0)}
>>   /ndn/edu/%C1.Router/cs/a nexthops={faceid=257 (cost=0)}
>>
>>
>> mininet> b nfd-status -b
>> FIB:
>>   /ndn/NLSR/sync nexthops={faceid=257 (cost=0), faceid=260 (cost=10)}
>>   /localhost/nfd/rib nexthops={faceid=256 (cost=0)}
>>   /ndn/NLSR/LSA nexthops={faceid=260 (cost=10)}
>>   /ndn/broadcast/KEYS nexthops={faceid=257 (cost=0), faceid=260 (cost=10)}
>>   /ndn/edu/%C1.Router/cs/b nexthops={faceid=257 (cost=0)}
>>   /ndn/edu/a nexthops={faceid=260 (cost=10)}
>>   /localhost/nfd nexthops={faceid=1 (cost=0)}
>>   /localhost/nlsr nexthops={faceid=257 (cost=0)}
>>   /ndn/edu/%C1.Router/cs/a nexthops={faceid=260 (cost=10)}
>>   /ndn/NLSR/LSA/edu/%C1.Router/cs/b nexthops={faceid=257 (cost=0)}
>>
>> Any ideas? Thank you very much
>>
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