The route is well signposted. I've done this connection several times in one hour 15 mins using the shuttle and you can walk it as well. Its tight though.
If you leave the aircraft in the first group of passengers you should expect to get through immigration fairly quickly but allow yourself anything from 10 mins to 1hour.
Usually CDG is a mess in the morning along with the security lines/immigration. 2hours should be more than adequate so don't worry too much ^ and enjoy where your travels take you . 2 hours should be enough. You should be fine with a 2-hr connection.
Navigating Charles de GaulleCDG is a sprawling airport with a confusing number of terminal designations, from Terminal 1 to Terminal 2A through 2F. Terminal 2, in fact, is really a collection of seven terminals, with a few extra sub-designations like 2F-1 to make matters even more confusing.
Paris-Charles de Gaulle serves 328 destinations in 119 countries. As the hub of the national airline Air France and the main European hub of the Sky Team alliance, the airport handles the largest share of long-haul flights from Paris.
You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight. Finally, you'll need to go through Transportation Security Administration screening. This may include a physical inspection of your luggage and personal items with a metal detector or a full-body scan.
Passengers who have not exceeded the duty-free allowance and have nothing to declare should go directly through the exit doors. All other passengers, or passengers who are unsure should stop at the French Customs office.