To configure a BGP confederation on a VPRN site
Purpose
A BGP confederation allows for the full distribution of external routing information within an AS.
You can configure BGP confederations only when:
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no VRF import or export policies are configured on the VPRN site
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no VPRN GRT lookup or export policies are configured on the VPRN site
You cannot configure VRF import or export policies, VRF target, or GRT lookup or export policies when a BGP confederation is configured.