多項(xiàng)選擇題

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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