Technical Summary
This document defines an EDNS0 option ("edns-tcp-keepalive") that
allows DNS servers to signal a variable idle timeout. This
signalling facilitates a better balance of UDP and TCP transport
between individual clients and servers, reducing the impact of
problems associated with UDP transport and allowing the state
associated with TCP transport to be managed effectively with minimal
impact on the DNS transaction time.
Working Group Summary
This document originally was adopted but had a few points of controversy
over the initial size of the keep alive option. Another draft was
written at one with a different solution. The authors ended up
collaborating on this document and the final solution with input from
several working group members.
Personnel
Document Shepherd: Tim Wicinski
Area Director: Joel Jaggeli