RFC 7067 · INFORMATIONAL · 2013

Directory Assistance Problem and High-Level Design Proposal

Overview

RFC 7067, “Directory Assistance Problem and High-Level Design Proposal”, is an Informational document published in November 2013 by L. Dunbar, D. Eastlake 3rd, R. Perlman, I. Gashinsky. The canonical text is published by the RFC Editor.

Abstract

Edge TRILL (Transparent Interconnection of Lots of Links) switches currently learn the mapping between MAC (Media Access Control) addresses and their egress TRILL switch by observing the data packets they ingress or egress or by the TRILL ESADI (End-Station Address Distribution Information) protocol. When an ingress TRILL switch receives a data frame for a destination address (MAC&Label) that the switch does not know, the data frame is flooded within the frame's Data Label across the TRILL campus.

This document describes the framework for using directory services to assist edge TRILL switches in reducing multi-destination frames, particularly unknown unicast frames flooding, and ARP/ND (Address Resolution Protocol / Neighbor Discovery), thus improving TRILL network scalability and security.

Abstract as published in the RFC, via rfc-editor.org.

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

Read this RFC

The canonical text of RFC 7067 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 2013

Who Is Online

In total there are 510 users online: 0 registered, 505 guests and 5 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: AhrefsBot Applebot Other Bot Other Crawler SemrushBot

Users active in the past 15 minutes. Total registered members: 354