Re: [DNSOP] [Ext] WGLC rfc8499bis one week extension for lame delegation definition
Edward Lewis <edward.lewis@icann.org> Wed, 03 May 2023 16:30 UTC
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From: Edward Lewis <edward.lewis@icann.org>
To: DNSOP Working Group <dnsop@ietf.org>
CC: "Wessels, Duane" <dwessels=40verisign.com@dmarc.ietf.org>
Thread-Topic: [DNSOP] [Ext] WGLC rfc8499bis one week extension for lame delegation definition
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Date: Wed, 03 May 2023 16:29:56 +0000
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Subject: Re: [DNSOP] [Ext] WGLC rfc8499bis one week extension for lame delegation definition
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On 5/1/23, 12:43 PM, "DNSOP on behalf of Wessels, Duane" <dnsop-bounces@ietf.org on behalf of dwessels=40verisign.com@dmarc.ietf.org> wrote: > My preferred definition is the one originally given by Paul Vixie, amended by myself, and further amended by Peter Thomassen: > > A lame delegation is said to exist when one or more authoritative > servers designated by the delegating NS rrset or by the child's apex NS > rrset answers non-authoritatively for a zone. The trouble I have with this definition is that servers don't "answer ... for a zone", they answer specific queries. Plus, the adjective "authoritative" is redundant, as " designated by the delegating NS rrset or by the child's apex NS rrset" includes all authoritative servers (and then some, if you don’t include a parent NS name not in the child NS name as authortitative). And, as DNS data is constantly changing, what's in or out of an NS set or authoritatively answered may change from moment to moment (so I add 'assumed' below): A lame delegation is said to exist when a server assumed (by the querier) to be authoritative for a zone replies non-authoritatively for {any|all} data within the zone. 1) Answering authoritatively means that the answer section matches the query and the AUTHORITATIVE ANSWER bit is properly set - this ought to be in its own definition. 2) A server may be assumed to be authoritative for a zone if the server is listed in a current NS set for the zone, whether that set is published by the delegating zone at a cut point or by the zone itself at its apex. This also should be a separate definition. ...The undefined term in that is "current" - meaning - a NS set that is still within the TTL upon arrival... 3) {any|all} open question...can a server be "partially lame?"
- [DNSOP] WGLC rfc8499bis one week extension for la… Benno Overeinder
- Re: [DNSOP] WGLC rfc8499bis one week extension fo… George Michaelson
- Re: [DNSOP] WGLC rfc8499bis one week extension fo… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Paul Hoffman
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Tim Wicinski
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Wessels, Duane
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… John Kristoff
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Hollenbeck, Scott
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… libor.peltan
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Brian Dickson
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Mark Delany
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Paul Vixie
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Wes Hardaker
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Paul Vixie
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Ralf Weber
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Magnus Sandberg
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Frederico A C Neves
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Peter Thomassen
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Wes Hardaker
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Paul Wouters
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Paul Wouters
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Peter Thomassen
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Peter Thomassen
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Peter Thomassen
- Re: [DNSOP] WGLC rfc8499bis one week extension fo… John Kristoff
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Warren Kumari
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Havard Eidnes
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Havard Eidnes
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Warren Kumari
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Edward Lewis
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Edward Lewis
- Re: [DNSOP] WGLC rfc8499bis one week extension fo… Donald Eastlake
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Edward Lewis
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Havard Eidnes
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Mark Delany
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Warren Kumari
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Havard Eidnes
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Havard Eidnes
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Mark Andrews
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… George Michaelson
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Mark Andrews
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Brian Dickson
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Joe Abley
- [DNSOP] Delegation acceptance checks [was: Re: [E… Peter Thomassen
- Re: [DNSOP] Delegation acceptance checks [was: Re… Warren Kumari
- Re: [DNSOP] Delegation acceptance checks Havard Eidnes
- Re: [DNSOP] Delegation acceptance checks [was: Re… Mark Delany
- Re: [DNSOP] Delegation acceptance checks [was: Re… Joe Abley
- Re: [DNSOP] [Ext] WGLC rfc8499bis one week extens… Edward Lewis
- Re: [DNSOP] Delegation acceptance checks [was: Re… Brian Dickson
- Re: [DNSOP] Delegation acceptance checks [was: Re… John Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Dr Eberhard W Lisse
- Re: [DNSOP] Delegation acceptance checks Dr Eberhard W Lisse
- Re: [DNSOP] WGLC rfc8499bis one week extension fo… Benno Overeinder
- Re: [DNSOP] Delegation acceptance checks Havard Eidnes
- Re: [DNSOP] Delegation acceptance checks Joe Abley
- Re: [DNSOP] Delegation acceptance checks [was: Re… John Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Mark Andrews
- Re: [DNSOP] Delegation acceptance checks [was: Re… Peter Thomassen
- Re: [DNSOP] Delegation acceptance checks Peter Thomassen
- Re: [DNSOP] Delegation acceptance checks Mark Elkins
- Re: [DNSOP] Delegation acceptance checks [was: Re… John Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Kim Davies
- Re: [DNSOP] Delegation acceptance checks [was: Re… Mark Andrews
- Re: [DNSOP] Delegation acceptance checks [was: Re… John Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Mark Andrews
- Re: [DNSOP] Delegation acceptance checks [was: Re… John R Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Mark Andrews
- Re: [DNSOP] Delegation acceptance checks [was: Re… Rubens Kuhl
- Re: [DNSOP] Delegation acceptance checks [was: Re… John R Levine
- Re: [DNSOP] Delegation acceptance checks [was: Re… Edward Lewis