Note: This post is based on Beta 2 and is subject to change in future releases.
I highly recommend to review the Services in SharePoint 2010 Products diagram, Publish a service application (SharePoint Server 2010) and
Connect to a service application on a remote farm (SharePoint Server 2010) on SP 2010 TechNet site before trying the following steps.
In this post I am going over steps required to configure farm federation to share specific services in a provider farm to be consumed by consumer farm(s). These steps have been validated against Beta build (4536.1000) and is subject to change for RTM release.
In this scenario SHPT-MIG-07 acts as a provider farm publishing search and managed metadata services and SHPT-MIG-06 as consumer.