Name: draft-austein-dnsext-nsid-01
Title: EDNS NSID Extension
State: Active
Authors: Rob Austein
Group: Individual Submissions (none)
Date: 2004-07-19
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 mechanism 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
which actually responded is to have the name server include this
information in the response itself. This note proposes a protocol
enhancement to support this functionality.
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