This field indicates whether DC-BGP carries out multi-exit discriminator (MED) comparison to determine the preferred route from two BGP routes originating from the local confederation. If this is FALSE then DC-BGP does not carry out MED comparison between BGP routes whose AS paths are either empty or contain only confederation segment types. If this is TRUE then DC-BGP additionally carries out MED comparison between two BGP routes matching the above criteria. This is the default behavior and is required for DC-BGP to use the decision process as defined in the BGP standards. All BGP routers in an AS should have the same configuration for this field to avoid routing loops. This field can only be changed when the Admin Status is down.