I'm flying my girlfriend from IAH to MAD on a CO award ticket (on Air France) via CDG. She will land in terminal 2E but will need to transfer to 2F to catch her flight to MAD.

I've never transferred terminals before at CDG for a connection, does anyone know the setup? I know she will have to clear customs with transferring passengers, but to physically get from 2E to 2F is there a walkway would she use the inter-terminal bus?

Thanks for any help!