On 16/11/17 14:56, Nicolas Pace wrote:
On Fri, 2017-11-10 at 15:08 +0100, Amuza wrote:

Hi,

Hi Amuza!

Too many questions in one email :)

Will try to address some of them!

Thank you Nicolas!

      

        
When there is a zone with high density (many users),
how many stations does a node accept?


      

      
I don't have much information about this, but heard 20, and others more
than 60... so your mileage may vary :)



      

        
Is there a maximum?


      

      
I would say that if you have a high enough room you can always stack
people :)
There are practical limits, they will start colliding all with each
other to the point there will be no useful traffic.
Keep it as low as possible.



      

        
Do you have any rough recommendation?


      

      
no... less than 20 I would say.



      

        
What would you say for the following routers?
WDR3600
WDR4300


      

      
This 2 are ideal, dual radio, big enough, well tested (we use them in
Argentina on a daily basis for many years now).



      

        
NSM5


      

      
don't know this.

    

    

    Sorry, I meant Ubiquiti Networks NanoStation M5

    

      



      

        
WR841ND 


      

      
this has not enough storage... you will struggle a lot with it... Also
has one radio, so effective bandwidth will be divided by half per hop!



      

        
If, in that same zone, we put several nodes close to each other,
do they somehow load-balance the number of accepted stations per
node?


      

      
There is no code for that, but you could implement it by coordinating
them and only having one at a time announcing the network... in that
situation you also need to spread them over the spectrum (so they don't
collide with each other).




      

        
I was told the recommended network size for a LiMe layer-2 cloud was
/21.


      

      
really? don't see why... please share :)



      

        
I would like to know what criteria should be taken into account when
considering to create additional layer-2 clouds.


      

      
I like to think about this as administrative boundaries.
People that get along together form a Community, and they should be
part of the same network.



      

        
Is there any maximum number of LiMe nodes (any type) per layer-2
cloud you would roughly recommend?


      

      
Don't have any answer for this.



      

        
Is there any maximum number of LiMe access points per layer-2 cloud
you would roughly recommend?


      

      
Don't have any answer for this.



      

        
When you have different layer-2 clouds, I understand they
automagically connect to each other and share their Internet
connections.


      

      
You need to connect them through a wan-to-wan ethernet cable for this
to happen.

    

    

    What is that WAN-to-WAN connection? Is that really necessary?

    I think I once tested it and it was not needed.

    I think the two layer-2 clouds saw each other (wirelessly) and
    automatically started to share the Internet connection.

    

      



      

        
But, what are the differences for users communicating from different
L2 clouds?


      

      
Different collision domains, no broadcast across different networks.



      

        
I mean compared to users in just one L2 cloud.
They won't share the local name resolution anymore (published
services within the L2 cloud), will they?


      

      
Don't have any answer for this.

    

    

    By local name resolution I mean something like a hosts file -to be
    edited manually- which is shared only within the layer-2 cloud.

    I have never checked it, but I think I read it somewhere.

    Maybe it is this A.L.F.R.E.D. that, besides sharing DHCP leases, it
    is also sharing the list of published services within the layer-2
    cloud (pairing name and IP address)?

    

    If so, is it only shared within the layer-2 cloud?

    

    

      



      

        
Any other difference?


      

      
Don't have any answer for this.


Bye,

      

      

      

      
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