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RFC 7108
Title: A Summary of Various Mechanisms
Deployed at L-Root for the Identification
of Anycast Nodes
Author: J. Abley, T. Manderson
Status: Informational
Stream: Independent
Date: January 2014
Mailbox: jabley@dyn.com,
terry.manderson@icann.org
Pages: 11
Characters: 24125
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-jabley-dnsop-anycast-mapping-04.txt
URL: http://www.rfc-editor.org/rfc/rfc7108.txt
Anycast is a deployment technique commonly employed for
authoritative-only servers in the Domain Name System (DNS). L-Root,
one of the thirteen root servers, is deployed in this fashion.
Various techniques have been used to map deployed anycast
infrastructure externally, i.e., without reference to inside
knowledge about where and how such infrastructure has been deployed.
Motivations for performing such measurement exercises include
operational troubleshooting and infrastructure risk assessment. In
the specific case of L-Root, the ability to measure and map anycast
infrastructure using the techniques mentioned in this document is
provided for reasons of operational transparency.
This document describes all facilities deployed at L-Root to
facilitate mapping of its infrastructure and serves as documentation
for L-Root as a measurable service.
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