The following publications are possibly variants of this publication:
- The BGP Tunnel Encapsulation AttributeKeyur Patel, Gunter Van de Velde, Srihari R. Sangli, John G. Scudder. rfc, 9012:1-41, April 2021. [doi]
- The Accumulated IGP Metric Attribute for BGPPradosh Mohapatra, Rex Fernando, Eric C. Rosen, James Uttaro. rfc, 7311:1-15, August 2014. [doi]