Openfire scalability architecture

Hi,

I want to sketch out an architecture for how we can scale out with our solution, which is using openfire.

I know we can use connection managers, but when we grow out of that, what do we do.

Is there a paper describing a typical openfire scale-out solution, i prefer that to a scale-up.

I have seen the papers on scalability tests, but 10K users is not that impressive, as need to comfortable at least at

a 200K user level to be able to continue using openfire.

So, what are the experiences? What is the proposed strategy?

Thanks for all input, I'll be happy to summarize any feedback in a little "paper" is that is desired.

I have been searching around for a description, but can not find anything. Sorry if I overlooked something that

described what I am asking for. Any pointers appreciated.

Cheers

Jari