I remember something similar with Frame Relay and mostly with ATM,
which in deed had its own routing protocol PNNI. I do not know about
IEEE 802.11s but with ATM you need to switch the cells independently
from the L3 protocol (then it came MPLS and we forgot about ATM), I
imagine that 802.11s has some needs about meshing topologies, roaming,
etc. that require that independent routing from the L3.
Regards,
-as
On 19 May 2008, at 22:24, Ghada Al-Mashaqbeh wrote:
>
> Dear all,
>
> I just want to find a reasonable justfications of why the IEEE
> 802.11s standard have specified that routing must take place at
> layer 2 of the protocol stack not layer 3? and which is better
> routing on layer 2 or layer 3 of the protocol stack?
>
> Thanks,
>
> Ghada
>
>
>
>