[Mini-NDN] {Disarmed} Re: Consumer is not receiving the data (MiniNdn)

[Ashlesh Gawande (agawande)]

Just wanted to mention, even with using IP static routes might not work as there is no routing protocol on IP level (However, each node should be able to reach its neighbor using IP and the correct interface and there should be no problem in registering routes towards neighbor in NFD).


One needs to first install routes for IP (using the route command) and then install routes for NFD.

Ashlesh
________________________________
From: Mini-NDN <mini-ndn-bounces at lists.cs.ucla.edu> on behalf of Vince Lehman (vslehman) <vslehman at memphis.edu>
Sent: Tuesday, March 1, 2016 9:58 AM
To: Percy Perez Aruni
Cc: mini-ndn at lists.cs.ucla.edu
Subject: Re: [Mini-NDN] {Disarmed} Re: Consumer is not receiving the data (MiniNdn)

1.- How can I use MiniNdn to collect  data traffic for each and between nodes?
For example, I would like to collect data traffic for the forwarder, like which face has received the interest or data and when?

If you would like to log forwarder information on a node, you can add an additional parameter to its definition in the topology configuration file:

[nodes]
a: _ nfd-log-level=DEBUG
...

The log will be written to the node’s home folder (by default, /tmp/$NODE_NAME).

2.- To register static routes from a ExperimentClass, could MiniNdn  use the host.name<http://host.name/> instead of IP addresses?
      for example:
                     self.net<http://self.net/>['p'].cmd("nfdc register /ndn/edu/store1 tcp://MailScanner warning: numerical links are often malicious: 1.0.0.3:6363<http://1.0.0.3:6363/> &")

In the current version of Mini-NDN, using the IP address is the standard way to achieve static routes. In the future, we would like to provide a static routing helper that would allow a user to call something like:

Nfdc.register(self.net<http://self.net>[‘p’], “/ndn/edu/store1”, dstNode)

--
Vince Lehman

On Feb 29, 2016, at 6:25 PM, Percy Perez Aruni <pdpa at st-andrews.ac.uk<mailto:pdpa at st-andrews.ac.uk>> wrote:

Hi dear Shuo and Vince

Thank you both for replying my last email.
I just re-installed minindn (./install.sh -mrfti) and the script is working now. Unfortunately I can not explain why this was  necessary.

Regarding your comments:
>>> Is the script you included your entire experiment script? If not, could you please attach the full code?
Yes, it is the entire script.

If you do not mind, could I ask the following please:

1.- How can I use MiniNdn to collect  data traffic for each and between nodes?
For example, I would like to collect data traffic for the forwarder, like which face has received the interest or data and when?

2.- To register static routes from a ExperimentClass, could MiniNdn  use the host.name<http://host.name/> instead of IP addresses?
      for example:
                     self.net<http://self.net/>['p'].cmd("nfdc register /ndn/edu/store1 tcp://MailScanner warning: numerical links are often malicious: 1.0.0.3:6363<http://1.0.0.3:6363/> &")

Thank you again for your comments.

Regards
Percy





On 29 February 2016 at 04:46, Shuo Yang <shuoyang at email.arizona.edu<mailto:shuoyang at email.arizona.edu>> wrote:
Hi Percy,

It seems that you should write the script in this way:


 1from ndn.experiments.experiment import  Experiment

 2

 3class Experiment1(Experiment):

 4    def __init__(self,args):

 5        Experiment.__init__(self, args)

 6    def run(self):

 7        for host in self.net.hosts:

 8            if host.name<http://host.name/> == "p":

 9                host.cmd("echo test1 | ndnpoke /ndn/edu/producer &")

10

11        for host in self.net.hosts:

12            if host.name<http://host.name/> == "c":

13                print host.cmd("ndnpeek -p /ndn/edu/producer")

14

15Experiment.register("peek-poke", Experiment1)

At least yours is working on my side. I'm using Mini-ndn 0.1.1


Best luck!

Shuo

On Sun, Feb 28, 2016 at 5:09 PM, Percy Perez Aruni <pdpa at st-andrews.ac.uk<mailto:pdpa at st-andrews.ac.uk>> wrote:
Hi dear MiniNdn team

I am interested in using MiniNdn for an initial basic experiment between three nodes: a consumer , a forwarder and a producer.  It is highly possible that I am missing something,  but the consumer is not receiving the data from the producer.

Could I ask for some advice of how this could be achieved by using MiniNdn?


Some details below:

1.- Topology:  c <-> f <-> p

  where  c = consumer, f = forwarder, p =producer

2.- ExperimentClass:

from ndn.experiments.experiment import  Experiment

class Experiment1(Experiment):
    def __init__(self,args):
        Experiment.__init__(self, args)
    def run(self):
        if host.name<http://host.name/> == "p":
              host.cmd("echo test1 | ndnpoke /ndn/edu/p &")
        if host.name<http://host.name/> == "c":
              print host.cmd("ndnpeek -p /ndn/edu/p")
Experiment.register("peek-poke", Experiment1)

3.- Running as root:

#./install.sh -i; minindn --experiment=peek-poke --ctime=20  ndn_utils/topologies/three-nodes.conf

4.- "NLSR has successfully converged"


Thank you in advance for your time and help

Regards
Percy

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