Please note the following details with regard to extended community syntax:
          - Only rt and soo extended community types are recognized in the
            policy file.
 
          - The IP address MUST be a valid host address. Network address,
            Class-D and experimental IP address are not accepted.
 
          - There should not be any blank spaces inside an extended community.
            For example, rt :100:200 is not a valid extended community because there are spaces
            between rt and :
 
          - All three parameters of an extended community must be present,
            otherwise the extended community is rejected.