https://app.knowbase.one/vault/rfc/docid/8872
RFC8249: Transparent Interconnection of Lots of Links (TRILL): MTU Negotiation
Internet Engineering Task Force (IETF) M. Zhang Request for Comments: 8249 X. Zhang Updates: 6325, 7177, 7780 D. Eastlake 3rd Category: Standards Track Huawei IS...