BGP Communities

Hi, Following up on the thread about BGP communities, I was wondering if there is a guide on how to actually implement communities within a network... There are a couple of presentations about why communities are good and about the general design of communities but my googlefu has so far not found a "Here is how to deploy Communities" guide that takes into account the important things like configuration maintenance, how to scale and what mistakes not to make. We are a Cisco house so any Cisco specific documentation would be great but any guide right now would be a start. J -- COO Entanet International T: 0870 770 9580 W: http://www.enta.net/ L: http://tinyurl.com/3bxqez