Hello all,

I have been looking for specific information about the Layer 1 & Layer 2 protocol used for node-to-node communication in BBHN.  I realize that 802.11 whatever devices cannot directly connect to BBHN mesh nodes but I am curious as to what the actual protocol used is.  Is it still 802.11 and if so - which version.  If not what is the modulation and coding scheme?  Can anyone enlighten me or point me in the right direction?

73, John, KO4ZE

On the home page of this website, click on "Learn about OLSR".

Optimum Link State Routing is what you are looking for.

-KD5MFW

Thank-you so much for your quick reply. I had already reviewed the OLSR information. What I am curious about is the link layer protocol. Per RFC3626: "OLSR is developed to work independently from other protocols. Likewise, OLSR makes no assumptions about the underlying link-layer." The confusion may be that I was thinking OSI model layers (Layer 1 = Physical, Layer 2 = Datalink, Layer 3 = Network) instead of TCP/IP model layers(Layer 1 = Link, Layer 2 = Internet). I understand that OLSR doesn't care what underlying link protocol is used. What I am curious about is the BBHN design requirement of a properly configured BBHN node being able to communicate with any other properly configured node simply by being powered on. To accomplish this the nodes would have to agree on how to encode the OLSR Internet Layer data and signal that data across the Link Layer physical link. Does BBHN rely on the 802.11 function of the hardware to negotiate link modulation and coding or does it specify a particular version of 802.11? Thanks for the help and my apologies for the confusion! -KO4ZE