NHibernate and Memcached - Tutorial/Example

I have the Membase server installed with a couple buckets setup and I was looking for a good tutorial or example of how to use this as the 2nd level cache with NHibernate.

I am interested in what a sample configuration would look like and if there is anything I need to do in code or if I can handle it all from my NHibernate mappings.

Thanks for any assistance.