Transparent Interconnection of Lots of Links : ARP and Neighbor Discovery Optimization
RFC 8302, “Transparent Interconnection of Lots of Links : ARP and Neighbor Discovery Optimization”, is a Proposed Standard document published in January 2018 by Y. Li, D. Eastlake 3rd, L. Dunbar, R. Perlman, M. Umair. The canonical text is published by the RFC Editor.
Abstract
This document describes mechanisms to optimize the Address Resolution Protocol (ARP) and Neighbor Discovery (ND) traffic in a Transparent Interconnection of Lots of Links (TRILL) campus. TRILL switches maintain a cache of IP / Media Access Control (MAC) address / Data Label bindings that are learned from ARP/ND requests and responses that pass through them. In many cases, this cache allows an edge Routing Bridge (RBridge) to avoid flooding an ARP/ND request by either responding to it directly or encapsulating it and unicasting it. Such optimization reduces packet flooding over a TRILL campus.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8302 is hosted at rfc-editor.org. Available in TXT,HTML.
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