A new Request for Comments is now available in online RFC libraries. RFC 8302 Title: Transparent Interconnection of Lots of Links (TRILL): ARP and Neighbor Discovery (ND) Optimization Author: Y. Li, D. Eastlake 3rd, L. Dunbar, R. Perlman, M. Umair Status: Standards Track Stream: IETF Date: January 2018 Mailbox: liyizhou@huawei.com, d3e3e3@gmail.com, ldunbar@huawei.com, radia@alum.mit.edu, mohammed.umair2@gmail.com Pages: 18 Characters: 41883 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-trill-arp-optimization-09.txt URL: https://www.rfc-editor.org/info/rfc8302 DOI: 10.17487/RFC8302 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. This document is a product of the Transparent Interconnection of Lots of Links Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC