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RFC 5001: DNS Name Server Identifier (NSID) Option

In plain English — editorial summary, not part of the RFC

With the increased use of DNS anycast, load balancing, and other mechanisms allowing more than one DNS name server to share a single IP address, it is sometimes difficult to tell which of a pool of name servers has answered a particular query. While existing ad-hoc mechanisms allow an operator to send follow-up queries when it is necessary to debug such a configuration, the only completely reliable way to obtain the identity of the name server that responded is to have the name server include this information in the response itself. This note defines a protocol extension to support this functionality. [STANDARDS-TRACK]

Document record

Document ID
RFC5001
Published
August 2007
Authors
R. Austein
Status
PROPOSED STANDARD
Stream
IETF
Area
int
Pages
11
Also known as
—

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/5001-dns-name-server-identifier-nsid-option