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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: <3c2ef704-148f-ed03-26a9-8ea29256acc2@nic.cz> Content-Type: text/plain; charset=utf-8 Content-Language: cs Content-Transfer-Encoding: 8bit X-Virus-Scanned: clamav-milter 0.99.2 at mail X-Virus-Status: Clean Archived-At: Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-extended-error-04.txt X-BeenThere: dnsop@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: IETF DNSOP WG mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Feb 2019 11:26:33 -0000 On 07. 02. 19 16:47, Petr Špaček wrote: > --- New code points --- > > I propose to add couple more codes: Yet another code propodsl: * answer with stale data The resolver was unable to resolve answer within its time limits and decided to answer with stale data instead of answering with an error. This is typically caused by problems on authoritative side, possibly as result of an DoS attack. Retrying is likely to cause load and not yield a fresh answer, RETRY=0. Here is a problem that this code point is applicable to NOERROR as well as NXDOMAIN answers so I'm not sure how to categorize it. This reinforces my unanswered question why the draft proposes to copy RCODE into EDE. -- Petr Špaček @ CZ.NIC