Control Plane Flow and Data Plane Flow – BGP RFC 3107

BGP 3107 Architecture for Large ISP-Telecoms covers how BGP RFC 3107 help service providers to share the VPN routes across the boundaries without sharing the PE routes. ABR(Area Border Router) plays a vital role, as it has to modified the BGP next hop attribute to self.

Once the iBGP next-hop is changed, there after we can see how the control and data flow will look like.


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