On the Alcatel-Lucent 7750 SR, which one of the following steps is NOT required when enabling an MP-BGP session between PE routers in a VPRN?
Configuring an autonomous system number in the global context.
Configuring a BGP group and peer parameters.
Configuring a VPN-IPv4 address family.
Configuring an export policy to advertise routes between PEs.
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