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IETF RFC 5001

DNS Name Server Identifier (NSID) Option

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Organization: IETF
Publication Date: 1 August 2007
Status: active
Page Count: 11
scope:

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.

Document History

IETF RFC 5001
August 1, 2007
DNS Name Server Identifier (NSID) Option
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...
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