Re: [STDS-802-16] mesh net routing
" layer 3 routing can suffer from scalability." is too general a
statement. Layer 2 can suffer from scalability as well. All network,
especially mesh, can suffer from scalability under some scenarios.
One can use layer 3 or 2. Layer 2 can be done with ethCS carrying
ethernet MAC address or a few other ways I can imagine depending on the
scenarios. 802.11s uses layer 2 but borrows ideas from layer 3. Layer 3
is out of scope for 16, but the 16 needs to consider supporting
mechanisms.
This discussion needs more background and assumptions. Are we talking
about the 16-2004 mesh mode, or the new MMR activity in 16j (which has
not reached the point to discuss routing yet)? arbitrary topology or
constrained, etc. etc..
Byoung-Jo "J" Kim
macsbug@research.att.com
AT&T Labs - Research
http://macsbug.googlepages.com/
-----Original Message-----
From: Markus Kiennen [mailto:fastjack@GMX.DE]
Sent: Monday, October 09, 2006 3:32 PM
To: STDS-802-16@listserv.ieee.org
Subject: Re: mesh net routing
Hi,
so if I get this right, not even bridging (e.g. spanning tree) is
possible since no destination address in whatever form is given in WiMAX
Mesh?
Markus Kiennen
ali mahmud wrote:
> Hello,
> routing solutions for mesh networks are mostly layer 3 solutions.
> HOwever in large networks, layer 3 routing can suffer from
scalability.
> Layer 2 is the preferred but there is no solution for it yet.
Microsoft
> has a Mesh connectivity layer driver which works on layer 2.5 which is
a
> kind of virtual layer between layer 2 and layer3 and their routing
> protocol is modified form of dsr which works on multiple interfaces
and
> has improves channel diversity. Thanks
>
> */Markus Kiennen <fastjack@GMX.DE>/* wrote:
>
> Hi,
>
> i wonder how routing within the Mesh network is done. Is there any
> routing on MAC layer, or only on IP layer?
>
> If i want to download a file from the internet, does the BS have
the
> possibility to set destination address in the MAC Packet? (e.g.
> destination xmt node id)?
>
> Best regards.
>
> Markus Kiennen