Which Cisco IOS XR BGP configuration command is required to enable MP-BGP to carry IPv6 VPN routes?
A. address-family ipv4 unicast
B. address-family ipv6 unicast
C. address-family vpnv4 unicast
D. address-family vpnv6 unicast
Which Cisco IOS XR BGP configuration command is required to enable MP-BGP to carry IPv6 VPN routes?
A. address-family ipv4 unicast
B. address-family ipv6 unicast
C. address-family vpnv4 unicast
D. address-family vpnv6 unicast