Which two statements are correct with regard to route distinguisher as defined in RFC 4364-AKA IP-VPN（MPLS-VPN）？（）A、The configuration to define Route-Distinguisher is Ip vrf bulle Rd 1：1B、A route distinguisher can be imported and exported to and from a VRFC、Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm.D、Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.
Which two statements are correct with regard to route distinguisher as defined in RFC 4364-AKA IP-VPN（MPLS-VPN）？（）
- A、The configuration to define Route-Distinguisher is Ip vrf bulle Rd 1：1
- B、A route distinguisher can be imported and exported to and from a VRF
- C、Route-Distinguisher is an 8 byte BGP attribute value used in influencing BGP best path algorithm.
- D、Route-Distinguisher is an 8 byte value used in creating unique VPNv4 address.
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