RFC 5001

DNS Name Server Identifier (NSID) Option, August 2007

Canonical URL:
https://www.rfc-editor.org/rfc/rfc5001.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Author:
R. Austein
Stream:
IETF
Source:
dnsext (int)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC5001

Discuss this RFC: Send questions or comments to dnsext@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

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]


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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