Re: [DNA] MUST NOT add DNA Option when landmark RA = NO?(draft-pentland-dna-protocol-00.txt)

[Ranjitsinh Wable <wable@samsung.com>]

Hi Greg,

I agree on your point. But as per my understanding this is the case when
the node has moved to the new link and want to configure
 the address and based on the source address of the RS
and ranking the router which decide to respond need to send its prefixes.
Router can send all the learned prefixes but at this point of time the
host will not be interested in learned prefix information unless host have
any preferences of prefixes and based on this information want to wait for 
more RAs.
So there is no point in adding this information and the consuming the 
bandwidth.

This is my understanding but its better if authors clear the point.

Thanks and Regards,

Wable R. U.
----- Original Message ----- 
From: "Greg Daley" <greg.daley@eng.monash.edu.au>
To: <dna@eng.monash.edu.au>
Sent: Wednesday, June 01, 2005 9:16 AM
Subject: [DNA] MUST NOT add DNA Option when landmark RA = NO? 
(draft-pentland-dna-protocol-00.txt)


> I'm confused by this statement in the draft:
>
> In Section 5.1.4:
>
> "... If the RS contains a Landmark Option whose prefix does not
>  match any of those in the interface's stored prefix list, then
>  the Landmark option with the Landmark prefix is included in the
>  RA but with the No flag set.  All fixed options (MTU,
>  Advertisement Interval, flags, etc.) are added to the Router
>  Advertisement.  Prefix Information Options for any explicitly
>  configured prefixes SHOULD be added to the Router
>  Advertisement, while the DNAO for learned prefixes MUST not be
>  added."
>
> Is there a reason why DNAO MUST NOT be sent in this case?
>
> Isn't it useful to indicate immediately which of the
> prefixes are available on the new link?
>
> Greg
>
>