http://www.rfc-editor.org/rfc/rfc7956.txt
RFC 7956: Transparent Interconnection of Lots of Links (TRILL) Distributed Layer 3 Gateway, W. Hao, Y. Li, A. Qu, M. Durrani, P. Sivamurugan2016-09-01T23:00:00-00:00This document specifies an optional TRILL distributed gateway solution that resolves these centralized gateway issues.