[Ndn-interest] Launching several instances of nlsr

[Lan Wang (lanwang)]

Why do you want to run multiple instances of NLSR on one node without mini-NDN?  

Lan

> On Dec 2, 2016, at 9:41 AM, Matteo Bertolino <Matteo.Bertolino at eurecom.fr> wrote:
> 
> Dear Cesar,
> thanks for the answer. Actually I did it, with linux namespaces.
> I am convinced that nlsr is the problem, because I compared two FIB in this topology: node1, node2 both attached to nodeGW.
> 
> FIB of node1 in MINI: (just first line)
> /ndn/NLSR/sync nexthops={faceid=257 (cost=0), faceid=260 (cost=10)}
> 
> FIB of node1 without MINI: (just first line)
> /ndn/NLSR/sync nexthops={faceid=263 (cost=0), faceid=265 (cost=0), faceid=266 (cost=0), faceid=264 (cost=10), faceid=267 (cost=10), faceid=268 (cost=10)}
> 
> 6 entries vs 2. Then the NLSR instances are actually "together"!
> 
> 
> Quoting "César A. Bernardini" <mesarpe at gmail.com>:
> 
>> I don't remember the parameters of nslr . Maybe the thing you could try is
>> to create tap devices in Linux and attach the app to this fake interfaces.
>> I remember I did this three years ago.
>> 
>> Bests,
>> 
>> On Dec 2, 2016 15:40, "Matteo Bertolino" <Matteo.Bertolino at eurecom.fr>
>> wrote:
>> 
>>> Good morning, I need to perform a complicate question.
>>> I would like to launch several NDN nodes in different processes (i.e. 3
>>> processes) on the same machine. Exactly the same behaviour of mini-ndn, but
>>> without.
>>> Then, about the NFD I had no problem:
>>> 1- Open three terminals.
>>> 2- On each terminal, change the HOME environment variable.
>>> 3- Put on the new home a new nfd.conf, changing the socket name (nfd.sock,
>>> nfd1.sock, nfd2.sock), the port numbers, and repeat in the
>>> client.config.sample.
>>> 4- On each terminal, launch nfd --config ~/nfd.conf &
>>> 
>>> It works well. The problem arrives with NLSR.
>>> In each HOME, I put a different version of nlsr.conf, where I changed the
>>> names and the ip of the neighborhoods.
>>> Then I run on each node nlsr -d -f  ~/nlsr.conf
>>> 
>>> And here I noticed a strange thing: all the output, nlsr related,
>>> converges in one terminal. So I started to think that actually there are
>>> not 3 separated nlsr instances despite the three different processes.
>>> If I try to do nlsrc advertise /prefix , it tells me "success in
>>> advertisement", but no FIBS are actually updated. This demonstrate that the
>>> three instances are actually one.
>>> 
>>> But, however, mini obtains a perfect separation. I tried to replicate
>>> exactly the same steps in nlsr.py, but I have no success. In your opinion,
>>> what do I forgot ? Thanks
>>> 
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>> 
> 
> 
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