The IESG has approved the following document: - 'The edns-tcp-keepalive EDNS0 Option' (draft-ietf-dnsop-edns-tcp-keepalive-06.txt) as Proposed Standard This document is the product of the Domain Name System Operations Working Group. The IESG contact persons are Benoit Claise and Joel Jaeggli. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-dnsop-edns-tcp-keepalive/ 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