# Program the Network for Route Optimization

If route optimization is required, you must make the following network programming changes:

- On each cluster element, program the route optimization identifier the same as the element's CEID.

- On all other network elements, program a second ARS route to reach the cluster. For example:

- Node ID + # of internal digits to follow, and

- Node ID + # CEID digits + internal digits to follow (new entry)

NOTE: For more information on these topics, see Route Optimization.