RE: WLAN (was Re: IPv6 Host Configuration of Recursive DNS Server)

["Pascal Thubert \(pthubert\)" <pthubert at cisco.com>]

> Hi,
> 	unreliable flooding of control/routing packets is a long
standing
> problem in the MANET working group [1]. Recently the MANET working
group
> formed a design team that will tackle this problem among others that
arise
> when extending OSPF for wireless media.  AFAIK, their design will be
> IP-v4/IP-v6 agnostic.
> 
> There have been several reliable multicast mechanisms discussed on
MANET,
> but none have been written up as an Internet Draft yet. If the IP-v6
ND
> requirements were well defined, one could pick one of them as the
reliable
> IP-v6 link-local multicast mechanism.
> -----

My understanding is that this discussion has a lot to do with the fact
that the radio medium provides a many-to-many connectivity as opposed to
any-to-any. So neither NBMA nor P2MP really applies for OSPF, and there
comes for instance the need for repeaters in order to cover the shadow
areas. So this is not really about making multicast work for the radios,
but the somewhat different problem of how to model the radio interface
from the OSPF perspective. And there's not necessarily a .11's
infrastructure mode behind. So I'm not sure what you exactly expect from
there.

Pascal

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