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Tunnel Endpoint discovery The Tunnel SAFI carries the Tunnel endpoint address in the NLRI of the form Tunnel-ID:Tunnel-address a BGP Tunnel Encapsulation attribute which contains encapsulations and preferences. The VPNv4 update carries the VPNv4 NLRI of the form RD: IP-address a BGP Connector attribute of the form Tunnel-ID:Tunnel-address The BGP Connector attribute for the VPNv4 NLRI links the Tunnel SAFI NLRI |