The table contains route distinguisher entry for ipvpn. A route distinguisher entry can be of two types: Type 0 and Type 1. Each type is comprised as follows: Type 0 is made of the 2-byte Autonomous System Number (globally unique) as administrator field followed by a 4-byte locally assigned number field.Type 1 is made of a 4 byte IP address globally unique followed by a 2-byte locally assigned number.