I recently had project to migrate SharePoint 2010 from old server to a new server.
It was just Server migration not SharePoint Migration.
My networking team doesn't know how to find the Ports which should be opened in new server to communicate with each other and for all other important Sharepoint Functionality to work.
So i prepared a list of port number which are required for my SharePoint Farm.
My SharePoint Farm consists of:
1. 2 Application servers
2. 2 Web Front End servers
3. 1 SQL servers
4. Domain controllers.
Below is the list of port required to be open on new servers.
Hope this helps you :)
Happy SharePointing :)