Re: [DNA] MLD JOIN Questions?

[Greg Daley <greg.daley@eng.monash.edu.au>]

Christian Vogt wrote:
> Hi Sathya, hi Greg.
> 
>> The host SHOULD send the MLD group join report for the solicited
>> node's multicast group when it becomes optimistic.  [...]
> 
> 
> Note that Nick mentioned that he'll modify the OptiDAD draft so that the 
> optimistic address will be available for use even before the initial NS, 
> and thus the MLD report, is sent.  (See thread starting at [1].)
> 
> This would allow an RS with a TSLLAO option to be sent even before the 
> mobile node joins the solicited-node multicast group corresponding to 
> the optimistic address.
> 
> Does this have an impact on the DNA Protocol 3?

While this is ideal, there's a problem if the router doesn't
support TSLLAO, in that it will neighbour resolve (if it doesn't
multicastRA).

If there's no MLD message sent before the RS, then an NS back to
the host will be lost on a snooping network.

That's why the MUST is in the text I wrote.

Greg