W3C home > Mailing lists > Public > ietf-http-wg@w3.org > January to March 2014

Dynamic discovery of the support for HTTP/2 during domain name resolution

From: <emile.stephan@orange.com>
Date: Sun, 2 Mar 2014 22:13:27 +0000
To: "HTTP Working Group (ietf-http-wg@w3.org)" <ietf-http-wg@w3.org>
Message-ID: <26335_1393798411_5313AD0B_26335_11369_1_8005e3b7-1029-4aec-bef6-5f2322934d1a@PEXCVZYH01.corporate.adroot.infra.ftgroup>

I created an issue on github, https://github.com/http2/http2-spec/issues/418, about refining the Prior Knowledge approach used in the spec. I propose , see https://github.com/http2/http2-spec/pull/420, to add a new section which describes the discovery about the support for HTTP2 during the domain name resolution:

                 <section anchor="discover-domain-http2" title="Dynamic discovery of the support for HTTP/2">
          A client that makes a request to a resource resolves the domain name before establishing the TCP connection with the server.
          A client connected to an enterprise network previously determines the domain name of the local server or of the enterprise forward-proxy. This lookup is dynamic. It is made, as an example, with a call to the function FindProxyForURL() of the proxy.pac file discovered dynamically with DNS WPAD.
          The knowledge about the support for HTTP2 may be learned dynamically during the resolution of the actual domain name. DNS SRV is an available solution for discovering dynamically the support for HTTP/2. The SRV record provides the client with the host and port of a server which supports HTTP2 (e.g. _h2-10._tcp.example.com 3600 IN SRV 0 33 9876 h2srv.example.com). The support about HTTP2 for a server is valid only for the duration given by the Time To Live of the DNS SRV record.




Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.

This message and its attachments may contain confidential or privileged information that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and delete this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.
Thank you.

attached mail follows:

Received on Sunday, 2 March 2014 22:14:00 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:14:24 UTC