[Olsr-dev] algorithm to generate BSSID from SSID and channel

[Teco Boot]

Op 29 jun. 2012, om 20:50 heeft Markus Kittenberger het volgende geschreven:

> 
> 
> On Fri, Jun 29, 2012 at 8:40 PM, Hans-Christoph Steiner <(spam-protected)> wrote:
> 
> On Jun 29, 2012, at 2:34 PM, Markus Kittenberger wrote:
> 
>> 
>> 
>> On Fri, Jun 29, 2012 at 8:25 PM, Hans-Christoph Steiner <(spam-protected)> wrote:
>> 
>> On Jun 29, 2012, at 1:57 PM, Markus Kittenberger wrote:
>> 
>>> 
>>> 
>>> On Fri, Jun 29, 2012 at 7:29 PM, Hans-Christoph Steiner <(spam-protected)> wrote:
>>> 
>>> Here's our idea for a standard algorithm for generating a static BSSID
>>> based on the SSID and the channel.  Aaron suggested using the channel
>>> directly in the BSSID to lower the risk of conflicts.  Basically,
>>> networks with the same BSSID on different channels will work,
>>> yes but many devices will actually connect to each other on such a setup.
>>> of course with quite bad reception as the channel is wrong,
>>> 
>>> (in the lab with afair some bulelts this worked up to an offset of 15mhz!)
>>> 
>>> -> use different BSSID
>>> 
>>> Markus
>> 
>> Do you have a suggestion how to do this in an algorithm?
>> just encode the channel into the bssid
>> 
>> btw i just meant do not use the same bssid for different channels,..
>> (which is what aaron suggested to avoid conflicts) and which you comemnted, with "basically it would work"
>> 
>> so i felt it might be a good idea, to tell what kind of conflicts/issues you get with the same BSSID.
>> 
>> this btw is also a reason to NOT use the same CA:FE BA:BE bssid for different channels
> 
> I'm confused.  The proposal I sent already includes the channel in two bytes of the generated BSSID.  Am I missing something?
> sry for casuing another confusion,..
> 
> i was not commetning on your bssid proposal, but on the statement that using the same bssid on different channels would work,..
> 
> as yes it works, but not really as one would expect,..
> 
> as most people do not expect that one router on channel 1 can (quite well) exchange data with another router on channel 2
> or will have an very high ETX link in olsrd to another router on channel 3,..

Users expect that nodes with same SSID do communicate.
I understand the bad link with neighbor channels.

Define SSID "olsr-(channel)", then the BSSID hash. Everybody happy...

Teco


> thats all,..
> 
> Markus
> 
> .hc
> 
> 
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