The index of the Route Map to use for route exports to the peer for this AFI/SAFI. The peer may be configured to ignore this field and instead obtain the value from a peer-group as explained in the table description. If the peer is a member of a peer group then using the peer group export policy allows DC-BGP to take advantage of the economies of using peer groups. Route export uses a single export route map chosen as follows. - If using the peer group value and it is non-zero, then use that (even if the route map does not exist). - If using the peer value and it is non-zero, then use that (even if the route map does not exist). - Otherwise use configuration from the Policy Configuration Table.