Re: [DNA-BOF] Charter statements for DAD optimization

[Youn-Hee Han <yhhan@sait.samsung.co.kr>]

Hi Greg,

Greg wrote:
> > As Mobile IPv6 matures, the need for reliable and fast address allocation
> > and DAD scheme becomes critical to the goal of providing real-time 
> > data service. It should be also useful for nodes that are not doing 
> > movement detection, but get detached and attached. For any node 
> > wishing to send/receive packets immediately after achieving a new 
> > attachment, therefore, DAD optimization can be applicable.
> 
> Maybe we need to talk about the issue with sending and receiving
> packets within the first second of connectivity, rather than
> starting with Mobile IPv6.

I agree with you. Quickly sending and receiving packets can be 
applicable for some kinds of other scenarios than Mobile IPv6.
So, it seems be right that Chater should not designate a particular 
application for DAD optimization.
 
> I'll try to adapt your text:
> 
> There are some subsystems which need to send or receive packets,
> immediately after attaching to a new network.  Currently DA
> specifications prevent transmission or reception from an
> address on the new link within the first second of attachment.
> Therefore, DAD optimization may be applicable.

It looks nice to me.

> > DAD optimization may reveal two distinct strategies: Stateless DAD 
> > and Stateful DAD, which may be used to develop new DAD schemes. 
> > Such classification of DAD optimization schemes is determined according 
> > to whether the DAD state of addresses is stores in a node until they are 
> > allocated. 
> 
> I'm not sure that this needs to be in the charter at this stage,
> since it looks like it belongs either in the requirements space
> or solution space.
> 
> I think that charter wants to provide an overview of
> problem drivers for the working group.

I agree it seems to belong in the requirement or solution draft. However,
RFC 2418 (IETF Working Group Guidelines and Procedures) says that 
a charter also describes the approach that will be taken to achieve the goals.
So, the statement about strategies seems to be also reasonable for charter.

But, I don't like to make initial full charter so long. Therefore, if initial 
full charter has space to spare for it, let's insert it to that.

> Does anyone else have a comment on either Youn-Hee's original
> text, or my suggestions?

Hopefully it help you write a good charter.


Youn-Hee Han