[DNSOP] Closing out issues in draft-ietf-dnsop-resolver-priming
"Paul Hoffman" <paul.hoffman@vpnc.org> Fri, 16 October 2015 00:06 UTC
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From: Paul Hoffman <paul.hoffman@vpnc.org>
To: dnsop WG <dnsop@ietf.org>
Date: Thu, 15 Oct 2015 17:06:11 -0700
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Subject: [DNSOP] Closing out issues in draft-ietf-dnsop-resolver-priming
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<secretary hat on> Greetings. The WG has a draft, draft-ietf-dnsop-resolver-priming, which has somewhat fallen off the table, and it is time to bring it back. The draft has two identified open issues, and the authors would like the WG to clear those up before issuing a new draft, and then hopefully going to Working Group Last Call. Because the draft is expired, to review it, please see: https://tools.ietf.org/html/draft-ietf-dnsop-resolver-priming-05 The two open issues are in Section 4: 4. Requirements for Root Name Servers and the Root Zone The operational requirements for root name servers are described in [RFC2870]. This section specifies additional guidance for the configuration of and software deployed at the root name servers. All DNS root name servers need to be able to provide for all addresses of all root name servers. This can easily achieved by keeping all root name server names in a single zone and by making all root name servers authoritative for that zone. If the response packet does not provide for more than 512 octets due to lack of EDNS0 support, A RRSets SHOULD be given preference over AAAA RRSets when filling the additional section. [[Issue 1: EDNS0 is used as an indication of AAAA understanding on the side of the client. What to do with payload sizes indicated by EDNS0 that are smaller than 1024, is open to discussion. At the time of writing, some root name servers will fill the additional section with all available A RRSets, only adding some AAAA RRSets, when queried over IPv4 without EDNS0. Other servers will deliver more AAAA RRSets, therefore withholding some A RRSets completely [RFC4472].]] To ensure equal availability the A and AAAA RRSets for the root name servers' names SHOULD have identical TTL values at the authoritative source. [[Issue 2: Do the TTLs for the root NS RRSet and address RRSets in the root and the ROOT-SERVERS.NET. zones need to be aligned? In real life responses, the address RRSet's TTL values vary by name server implementation. Is this diversity we can live with? Should the authoritative source prevail? Is it therefore a protocol issue rather than an operational choice of parameters?]] The question at this point is: what should we do about each issue? Specific wording is appreciated. --Paul Hoffman
- [DNSOP] Closing out issues in draft-ietf-dnsop-re… Paul Hoffman
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Mark Andrews
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Tony Finch
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… 宋林健
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Shane Kerr
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Bob Harold
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Joe Abley
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Paul Vixie
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… 神明達哉
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Darcy Kevin (FCA)
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Paul Hoffman
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Joe Abley
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Paul Hoffman
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Paul Vixie
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Shane Kerr
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Paul Vixie
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Joe Abley
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Shane Kerr
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Darcy Kevin (FCA)
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Joe Abley
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Darcy Kevin (FCA)
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… 神明達哉
- Re: [DNSOP] Closing out issues in draft-ietf-dnso… Suzanne Woolf