[Olsr-users] 802.11S

[Aaron Kaplan]

No!

please imagine you have 20 wifi routers. You plug them all into one  
switch.
They magically all communicate because "the switch handles that".  
802.11s is the switch. That it uses mesh algorithms inside is great.

In addition the wifi routers talk olsr on lyaer 3. so they will form  
a network. Usually (if you configure olsr like that ) on all interfaces.
That will result in two connections from every node to every other  
node.  one wifi connection on layer 3 mesh and one layer 3 mesh over  
"the switch" which happens to be a layer 2 mesh.

Now imagine you pull apart the layer 2 switch and make it wireless.  
Well, then you have 802.11s

maybe a picture would help.

anyway... need to catch sleep.

a.



On May 16, 2008, at 9:25 PM, Don Moskaluk wrote:

> Thanks Aaron
>
> Yeah, that is exactly what I was looking for!
>
> So say you had a bubble that contain OLSR appliances you could work  
> with in the frame work of 802.11S however as client or bridge but  
> not as fully function 802.11S node?
>
> Hmmm, I better but a few prototypes together and start working on  
> some appliances!
>
> Thanks
>
> Don Moskaluk
> http://www.moskaluk.com/going_to_the_next_level.htm
>
> -----Original Message-----
> From: (spam-protected) [mailto:olsr-users- 
> (spam-protected)] On Behalf Of Aaron Kaplan
> Sent: Friday, May 16, 2008 3:10 PM
> To: Filipe Abrantes
> Cc: (spam-protected)
> Subject: Re: [Olsr-users] 802.11S
>
>
> On May 16, 2008, at 9:05 PM, Filipe Abrantes wrote:
>
>> When using an 802.11s network, all nodes within that network will
>> appear as if they are 1-hop (L3) away from each other (although I
>> don't really know if 11s implements pure broadcast). So, what would
>> happen if you ran olsrd on top of the 11s network would be to have
>> all nodes creating direct routes (no L3 gateway) to each other.
>>
>
> Filip, thanks for the clarifying comment.
> Don: to be a bit more explicit: YES olsr from olsr.org and 80211s
> will interoperate as automagically. 802.11s will appear like a big
> switch to any layer 3 OLSR network. More clarification might be
> obtained if you peek at http://en.wikipedia.org/wiki/OSI_model
>
> hope it helps too.
>
> a.
>
>> hope this helps,
>> Filipe
>>
>>
>> Don Moskaluk escreveu:
>>> Regardless of the terminology when you have two different wireless
>>> mesh nodes (hardware, software, firmware, etc) you should have the
>>> ability to interconnect not only a signal level but also using the
>>> service OLSR.  Not sure if this made sense however since you are
>>> about wireless mesh I just thought that I ask the question.
>>> Don Moskaluk
>>> www.moskaluk.com
>>>
>>> -----Original Message-----
>>> From: (spam-protected) [mailto:olsr-users-
>>> (spam-protected)] On Behalf Of Filipe Abrantes
>>> Sent: Friday, May 16, 2008 1:27 PM
>>> To: David Gascón
>>> Cc: (spam-protected); Bernd Petrovitsch
>>> Subject: Re: [Olsr-users] 802.11S
>>>
>>> if the difference between routing and switching is on at which
>>> layer packets are forwarded, then I would say neither 11s nor 15.4
>>> are doing routing. If not, then what really is the difference
>>> between switching and routing?
>>>
>>> Cheers,
>>> Filipe
>>>
>>>
>>> David Gascón escreveu:
>>>
>>>>> Since 802.11s is on OSI-layer 2, it will not route. It can only
>>>>> switch
>>>>> (or bridge) - similar to a switch in the wired world.
>>>>>
>>>> not really. 802.15.4 (ZigBee) is on layer 2 and does mesh.
>>>>
>>>> regards.
>>>>
>>>> David.
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>> -- 
>> Filipe Abrantes		http://pong.inescporto.pt/~fabrantes
>> INESC Porto
>> fla _at_ inescporto.pt
>>
>> Certificate Auth
>> https://ra.inescporto.pt/pub/cacert/cacert.crt
>>
>>
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