[Olsr-users] [B.A.T.M.A.N.] point me to some OSI layer diagrams if possible ?
Thu Dec 10 05:00:33 CET 2009
On Thursday 10 December 2009 07:40:53 L. Aaron Kaplan wrote:
> | link, 802.11s, B.A.T.M.A.N layer 2 version, OLPC's 802.11s| 2 the
> | HWMP and all the 80.211s stuff resides here. 802.11a/b/g/n resides here.
> | Madwifi, ath5k and ath9k reside here.
Sorry, but that is not (entirely) correct. It is no problem calling batman-adv
a layer 2 protocol for the sake of simplicity (it deals with MAC addresses
instead of IP addresses, etc ..). But if you mention batman-adv and
802.11s/ath5k/etc in the same sentence you have to be more precise as they do
not operate on the same layer.
batman-adv is layer 2.5 and runs on top of all ethernet based layer 2
protocols which means you can run it over wireless
(managed/adhoc/mesh/whatever mode), plain ethernet cable, VPNs and so on.
However, 802.11s is "true" layer 2 and as such is limited to the medium
(wireless) as well as to the hardware & drivers.
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