[Mini-NDN] Multi Router NLSR config

S Khorasani s.kh.khorasani at gmail.com
Fri Apr 15 13:48:45 PDT 2016 

At first, I do appreciate Ashlesh and Vince for their helps.

The problem was with the version of mininet I had installed. Unfortunately
default version that is available in Ubuntu 14.04 repo is 2.1.0 while
mini-NDN requires mininet 2.2.1. Mininet 2.2.1 should be installed from the
source.

Kind Regards,
skh

On Fri, Apr 15, 2016 at 11:01 PM, S Khorasani <s.kh.khorasani at gmail.com>
wrote:

> Dear Vince,
>
> Thank you very much for your answers.
> I run "sudo mn" as you mentioned and the result is as below:
> *** Creating network
> *** Adding controller
> *** Adding hosts:
> h1 h2
> *** Adding switches:
> s1
> *** Adding links:
> *** gave up after 3 retries
>
> It is noteworthy that I installed the mininet on a virtual machine from
> the source. The installation accomplished according to the guide on GitHub
> (2nd method of installation).
> I also trace the minindn code and find out that the problem is with line
> 266 where a new mininet object is created.
> May there be any problem with using VM for mininet and mini-NDN?
> As I find out, there exists some preinstalled mininets on ubuntu VMs.
> Should I use one of them instead of installing from the source?
>
> Best Regards,
> skh
>
> On Fri, Apr 15, 2016 at 6:45 PM, Vince Lehman (vslehman) <
> vslehman at memphis.edu> wrote:
>
>> Are you able to run Mininet? It could be that Mininet is not installed
>> correctly, and so Mini-NDN is unable to use it establish links.
>>
>> What is the output when your run “sudo mn”?
>>
>> --
>> Vince Lehman
>>
>> On Apr 15, 2016, at 3:24 AM, S Khorasani <s.kh.khorasani at gmail.com>
>> wrote:
>>
>> Hi everyone,
>>
>> Regarding my previous email on the output of running sudo minindn, I look
>> up for the reason. It seems that the problem occurs whenever mininet tries
>> to add links between nodes. As I'm using mini-NDN on vmware, may there be
>> any problem with vmware networking or any other settings? The output of
>> sudo minindn is as below:
>> Parse of /usr/local/etc/mini-ndn/default-topology.conf done.
>> *** Creating network
>> *** Adding controller
>> *** Adding hosts:
>> a b c d
>> *** Adding switches:*** Adding links:
>> *** gave up after 3 retries
>>
>> Regards
>>
>> On Tue, Apr 12, 2016 at 1:14 AM, S Khorasani <s.kh.khorasani at gmail.com>
>> wrote:
>>
>>> Dear Vince,
>>>
>>> The output of running sudo minindn is:
>>> Parse of /usr/local/etc/mini-ndn/default-topology.conf done.
>>> *** Creating network
>>> *** Adding controller
>>> *** Adding hosts:
>>> a b c d
>>> *** Adding switches:
>>>
>>> *** Adding links:
>>> *** gave up after 3 retries
>>>
>>> I do not pass any file as parameter for manual execution of NLSR. So it
>>> uses the configuration file in the current directory. I run it in two
>>> directories and the results are as follow:
>>>
>>> - directory: /usr/local/etc/mini-ndn/
>>>
>>> Wrong configuration section: $GENERAL_SECTION
>>> Wrong configuration section: $NEIGHBORS_SECTION
>>> Wrong configuration section: $HYPERBOLIC_SECTION
>>> Wrong configuration section: $FIB_SECTION
>>> Wrong configuration section: $ADVERTISING_SECTION
>>> ERROR: error while connecting to the forwarder (No such file or
>>> directory)
>>>
>>> - directory: Source of NLSR from GitHub:
>>> Provided log directory </var/log/nlsr/> does not exist
>>> Error in configuration file processing! Exiting from NLSR
>>>
>>> Best Regards,
>>> skh
>>>
>>> On Tue, Apr 12, 2016 at 12:40 AM, Vince Lehman (vslehman) <
>>> vslehman at memphis.edu> wrote:
>>>
>>>> But mini-NDN fails (without any error message at CLI or log).
>>>>
>>>>
>>>> When you run “sudo minindn”, is there any output? If so, can you please
>>>> send the output?
>>>>
>>>> Also manual execution of NLSR results in bad config file's format.
>>>>
>>>>
>>>> Are you passing the configuration file as a parameter to NLSR (i.e.,
>>>> nlsr -f /path/to/config/filename.conf) or do you have an NLSR configuration
>>>> file in the current directory when you run the “nlsr” command? If not, NLSR
>>>> will fail to parse the configuration, since it cannot find the
>>>> configuration file.
>>>>
>>>> --
>>>> Vince Lehman
>>>>
>>>> On Apr 11, 2016, at 3:00 PM, S Khorasani <s.kh.khorasani at gmail.com>
>>>> wrote:
>>>>
>>>> Dear Vince,
>>>>
>>>> My concern is that I have installed the source files on a new machine,
>>>> not the one that I already installed binary versions from PPA on it. So I
>>>> think that the problem is elsewhere. Could you please let me know other
>>>> probable sources of the problem?
>>>>
>>>> Regards,
>>>> skh
>>>>
>>>> On Mon, Apr 11, 2016 at 8:12 PM, Vince Lehman (vslehman) <
>>>> vslehman at memphis.edu> wrote:
>>>>
>>>>> Yes, the PPAs will either need to be removed or you will need to be
>>>>> sure that the binaries compiled and installed from source are the ones used
>>>>> by the system.
>>>>>
>>>>> The problem you are experiencing is due to the PPA version of NLSR
>>>>> expecting a configuration file at /etc/ndn/nlsr/nlsr.conf by default. The
>>>>> version installed from source expects nlsr.conf to be in the current
>>>>> working directory by default. When Mini-NDN runs NLSR, it does not
>>>>> explicitly specify a configuration file, so if you use the PPA version,
>>>>> each node will try to use the configuration in /etc/ndn/nlsr/nlsr.conf
>>>>> instead of the current working directory (which is each node’s home folder).
>>>>>
>>>>> This issue between source and PPA installs should be resolved when the
>>>>> task in http://redmine.named-data.net/issues/3039 is completed.
>>>>>
>>>>> --
>>>>> Vince Lehman
>>>>>
>>>>> On Apr 11, 2016, at 10:26 AM, Lan Wang (lanwang) <lanwang at memphis.edu>
>>>>> wrote:
>>>>>
>>>>> Maybe you need to clean up your previous PPA installation and then try
>>>>> the source installation.  Vince has seen similar problems before.
>>>>>
>>>>> Lan
>>>>>
>>>>> On Apr 10, 2016, at 2:26 PM, S Khorasani <s.kh.khorasani at gmail.com>
>>>>> wrote:
>>>>>
>>>>> Dear Ashlesh,
>>>>>
>>>>> In advance, thank you very much for your helps.
>>>>> Regarding your previous comment, I built and installed all packages
>>>>> from the sources regarding the instructions. The required paths created and
>>>>> files carefully copied to the paths.
>>>>> But mini-NDN fails (without any error message at CLI or log). Also
>>>>> manual execution of NLSR results in bad config file's format. Could you
>>>>> please let me know whether the problem is with defualt config file or
>>>>> mini-NDN executes NLSR with different config file. Where do you think the
>>>>> problem may be from?
>>>>>
>>>>> Many thanks,
>>>>> skh
>>>>>
>>>>> On Fri, Apr 8, 2016 at 1:24 AM, Ashlesh Gawande (agawande) <
>>>>> agawande at memphis.edu> wrote:
>>>>>
>>>>>> Mini-NDN does not support the PPAs yet. You will have to install
>>>>>> ndn-cxx, NFD, NLSR from source (make sure to uninstall the binaries first!).
>>>>>>
>>>>>> But you might be able to get it running:
>>>>>> Mini-NDN reads nlsr.conf and client.conf from /usr/local/etc/mini-ndn
>>>>>> which it copies over during installation.
>>>>>> nfd.conf should also be in this folder - copied from
>>>>>> /usr/local/etc/ndn/nfd.conf.sample
>>>>>>
>>>>>> Ashlesh
>>>>>> ------------------------------
>>>>>> *From:* S Khorasani <s.kh.khorasani at gmail.com>
>>>>>> *Sent:* Thursday, April 7, 2016 3:41 PM
>>>>>>
>>>>>> *To:* Ashlesh Gawande (agawande)
>>>>>> *Cc:* mini-ndn at lists.cs.ucla.edu
>>>>>> *Subject:* Re: [Mini-NDN] Multi Router NLSR config
>>>>>>
>>>>>> I installed binary version of NFD from
>>>>>> https://launchpad.net/~named-data/+archive/ppa (including ndn-cxx as
>>>>>> its prerequisite) and binary version of nlsr too. Then, I installed
>>>>>> mini-NDN from the source (available on GitHub) according to INSTALL.md.
>>>>>> However, when I run nlsr manually, it fails with the following error:
>>>>>> Failed to read configuration file: nlsr.conf
>>>>>> Error in configuration file processing! Exiting from NLSR.
>>>>>>
>>>>>>
>>>>>> On Fri, Apr 8, 2016 at 12:38 AM, Ashlesh Gawande (agawande) <
>>>>>> agawande at memphis.edu> wrote:
>>>>>>
>>>>>>> Can you please tell how you installed ndn-cxx, NFD, NLSR, and
>>>>>>> Mini-NDN?
>>>>>>>
>>>>>>> I would suggest first at least try to run with auto generated files
>>>>>>> before moving to manually configured files.
>>>>>>>
>>>>>>> Ashlesh
>>>>>>> ------------------------------
>>>>>>> *From:* S Khorasani <s.kh.khorasani at gmail.com>
>>>>>>> *Sent:* Thursday, April 7, 2016 3:05 PM
>>>>>>>
>>>>>>> *To:* Ashlesh Gawande (agawande)
>>>>>>> *Cc:* mini-ndn at lists.cs.ucla.edu
>>>>>>> *Subject:* Re: [Mini-NDN] Multi Router NLSR config
>>>>>>>
>>>>>>>
>>>>>>> Dear Ashlesh,
>>>>>>>
>>>>>>> Thank you very much for the response.
>>>>>>> I already checked the path, but there was no such
>>>>>>> directory(/etc/ndn/nlsr). So I added the directory and copied the file from
>>>>>>> the ndn_utils directory of the source and then run Mini-NDN. But the
>>>>>>> problem did not solve.
>>>>>>> Could you please let me know about the auto-generation mechanism of
>>>>>>> nlsr config file? Can I generate the config files of the nodes
>>>>>>> manually(using any script etc) and copy them to the nodes folders?
>>>>>>>
>>>>>>> Bests
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Apr 7, 2016 at 11:35 PM, Ashlesh Gawande (agawande) <
>>>>>>> agawande at memphis.edu> wrote:
>>>>>>>
>>>>>>>> Can you check if there is a file at /etc/ndn/nlsr/nlsr.conf and at
>>>>>>>> ndn_utils/nlsr.conf?
>>>>>>>>
>>>>>>>> Ashlesh
>>>>>>>> ------------------------------
>>>>>>>> *From:* S Khorasani <s.kh.khorasani at gmail.com>
>>>>>>>> *Sent:* Thursday, April 7, 2016 11:55 AM
>>>>>>>> *To:* Ashlesh Gawande (agawande)
>>>>>>>> *Cc:* mini-ndn at lists.cs.ucla.edu
>>>>>>>> *Subject:* Re: [Mini-NDN] Multi Router NLSR config
>>>>>>>>
>>>>>>>> Dear Ashlesh,
>>>>>>>>
>>>>>>>> Thank you very much for your instant response. Unfortunately my
>>>>>>>> setup does not make any nlsr.conf file in nodes' home folder. I check the
>>>>>>>> nlsr log file and there, I find out that the problem is with parsing the
>>>>>>>> nlsr.conf file you addressed. The error message is:
>>>>>>>> "Failed to read configuration file: /etc/ndn/nlsr/nlsr.conf. Error
>>>>>>>> in configuration file processing! Exiting from NLSR"
>>>>>>>> So I confused what may be the problem now. Your further helps would
>>>>>>>> be appreciated.
>>>>>>>>
>>>>>>>> Sincerely,
>>>>>>>> skh
>>>>>>>>
>>>>>>>> On Wed, Apr 6, 2016 at 6:59 PM, Ashlesh Gawande (agawande) <
>>>>>>>> agawande at memphis.edu> wrote:
>>>>>>>>
>>>>>>>>> Mini-NDN generates the NLSR configuration files for you.
>>>>>>>>>
>>>>>>>>> You can check under /tmp/<node-name>/nlsr.conf
>>>>>>>>>
>>>>>>>>> Mini-NDN copies this file
>>>>>>>>> https://github.com/named-data/mini-ndn/blob/master/ndn_utils/nlsr.conf
>>>>>>>>> after filling in appropriate sections to each node's home folder
>>>>>>>>> /tmp/<node-name>/
>>>>>>>>>
>>>>>>>>> Does this answer your question?
>>>>>>>>>
>>>>>>>>> Ashlesh
>>>>>>>>> ------------------------------
>>>>>>>>> *From:* Mini-NDN <mini-ndn-bounces at lists.cs.ucla.edu> on behalf
>>>>>>>>> of S Khorasani <s.kh.khorasani at gmail.com>
>>>>>>>>> *Sent:* Wednesday, April 6, 2016 3:32 AM
>>>>>>>>> *To:* mini-ndn at lists.cs.ucla.edu
>>>>>>>>> *Subject:* [Mini-NDN] Multi Router NLSR config
>>>>>>>>>
>>>>>>>>> Salaam,
>>>>>>>>>
>>>>>>>>> I'm beginner in using mini-NDN emulator and have  encountered
>>>>>>>>> problem in configuration of NLSR. My problem is exactly with multi router
>>>>>>>>> configuration. In fact I do not know how can I prepare a nlsr.conf file
>>>>>>>>> that could be matched with default topology of mini-NDN
>>>>>>>>> (default-topology.conf file). As I find out, the default topology is for a
>>>>>>>>> multi router scenario (4 nodes), but the default configuration file of NLSR
>>>>>>>>> (nlsr.conf|) is not compatible with this scenario.
>>>>>>>>> So it would be my pleasure if everyone could help me.
>>>>>>>>>
>>>>>>>>> Kind Regards,
>>>>>>>>> skh
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Mini-NDN mailing list
>>>>> Mini-NDN at lists.cs.ucla.edu
>>>>> http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Mini-NDN mailing list
>>>>> Mini-NDN at lists.cs.ucla.edu
>>>>> http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>> _______________________________________________
>> Mini-NDN mailing list
>> Mini-NDN at lists.cs.ucla.edu
>> http://www.lists.cs.ucla.edu/mailman/listinfo/mini-ndn
>>
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/mini-ndn/attachments/20160416/3efdc717/attachment.html>

More information about the Mini-NDN mailing list