Complete 350-501 Cisco Materials

 The correct route policy to satisfy the requirements is Option C. This option likely contains the necessary commands to:

• Accept only customer-assigned prefixes, which can be specified using an access list or prefix list.
• Preserve customer advertised BGP communities, which is typically done with the set community command along with the additive keyword to ensure existing communities are not overwritten.
• Set the local-preference to 110 for all prefixes, which is achieved with the set local-preference 110 command.
• Attach the ORIGINATION-PE and LOCAL-CITY communities to all accepted prefixes, which would also use the set community command with both community values specified and the additive keyword.

References: The Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) training materials provide detailed information on BGP and route policies, including how to configure route maps and policy-based routing to control path selection and maintain BGP community information.

The neighbor relationship is down because R2 is operating as a Level 1 router and the two routers are in different areas. In the IS-IS (Intermediate System to Intermediate System) protocol, Level 1 routers exchange routing information with other Level 1 routers in the same area, while Level 2 routers exchange information between areas. Since R1 is configured as a level-2 router and R2 as a level-1 router, they cannot form a neighbor relationship if they are not in the same area. References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide