Re: [netconf] RFC 6241 Ambiguity
Andy Bierman <andy@yumaworks.com> Tue, 25 June 2019 22:57 UTC
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In-Reply-To: <3204AB2C-3B67-419A-851E-9BA8BEB2273A@gmail.com>
From: Andy Bierman <andy@yumaworks.com>
Date: Tue, 25 Jun 2019 15:56:58 -0700
Message-ID: <CABCOCHRprs7hBOcNqamLRdeP67LZafHe_pczsACFzczpXHUxAA@mail.gmail.com>
To: Mahesh Jethanandani <mjethanandani@gmail.com>
Cc: "netconf@ietf.org" <netconf@ietf.org>
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Subject: Re: [netconf] RFC 6241 Ambiguity
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Hi, these changes look OK to me. Andy On Tue, Jun 25, 2019 at 11:03 AM Mahesh Jethanandani < mjethanandani@gmail.com> wrote: > Summarizing the list of changes that we seem to have agreed upon: > > For the first set of changes in section 7.8 and 7.9, we seem to agree on > the original set of changes I had sent out earlier, which essentially > deferred the discussion of confirmed commit to section 8.4 of the RFC. The > second set of changes updates Section 8.4.1 to explain what happens to a > confirmed commit that includes a <persist> element. > > The highlights in the sections should enable identifying the changes. > > *CHANGE 1 START* > > OLD (as in original RFC 6241) > > *7.8* <https://tools.ietf.org/html/rfc6241#section-7.8>*. > <close-session>* > > Description: Request graceful termination of a NETCONF session. > > When a NETCONF server receives a <close-session> request, it will > gracefully close the session. The server will release any locks > and resources associated with the session and gracefully close any > associated connections. Any NETCONF requests received after a > <close-session> request will be ignored. > > Positive Response: If the device was able to satisfy the request, an > <rpc-reply> is sent that includes an <ok> element. > > Negative Response: An <rpc-error> element is included in the > <rpc-reply> if the request cannot be completed for any reason. > > Example: > > <rpc message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <close-session/> > </rpc> > > <rpc-reply message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <ok/> > </rpc-reply> > > NEW > > *7.8* <https://tools.ietf.org/html/rfc6241#section-7.8>*. > <close-session>* > > Description: Request graceful termination of a NETCONF session. > > When a NETCONF server receives a <close-session> request, it will > gracefully close the session. The server will release any locks > and resources associated with the session and gracefully close any > associated connections. Any NETCONF requests received after a > <close-session> request will be ignored. > > For details on what happens if a NETCONF server receives a > <close-session> request while processing a confirmed commit, > please refer to Section 8.4 > <https://tools.ietf.org/html/rfc6241#section-8.4>. > > Positive Response: If the device was able to satisfy the request, an > <rpc-reply> is sent that includes an <ok> element. > > Negative Response: An <rpc-error> element is included in the > <rpc-reply> if the request cannot be completed for any reason. > > Example: > > <rpc message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <close-session/> > </rpc> > > <rpc-reply message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <ok/> > </rpc-reply> > > OLD (as in original RFC 6241). > > *7.9* <https://tools.ietf.org/html/rfc6241#section-7.9>*. <kill-session>* > > Description: Force the termination of a NETCONF session. > > When a NETCONF entity receives a <kill-session> request for an > open session, it will abort any operations currently in process, > release any locks and resources associated with the session, and > close any associated connections. > > If a NETCONF server receives a <kill-session> request while > processing a confirmed commit (Section 8.4 > <https://tools.ietf.org/html/rfc6241#section-8.4>), it MUST restore the > configuration to its state before the confirmed commit was issued. > > Otherwise, the <kill-session> operation does not roll back > configuration or other device state modifications made by the > entity holding the lock. > > Parameters: > > session-id: Session identifier of the NETCONF session to be > terminated. If this value is equal to the current session ID, > an "invalid-value" error is returned. > > Positive Response: If the device was able to satisfy the request, an > <rpc-reply> is sent that includes an <ok> element. > > Negative Response: An <rpc-error> element is included in the > <rpc-reply> if the request cannot be completed for any reason. > > > Example: > > <rpc message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <kill-session> > <session-id>4</session-id> > </kill-session> > </rpc> > > <rpc-reply message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <ok/> > </rpc-reply> > > NEW > > *7.9* <https://tools.ietf.org/html/rfc6241#section-7.9>*. <kill-session>* > > Description: Force the termination of a NETCONF session. > > When a NETCONF entity receives a <kill-session> request for an > open session, it will abort any operations currently in process, > release any locks and resources associated with the session, and > close any associated connections. > > For details on what happens if a NETCONF server receives a > <kill-session> request while processing a confirmed commit, > please refer to Section 8.4 > <https://tools.ietf.org/html/rfc6241#section-8.4>. > > Otherwise, the <kill-session> operation does not roll back > configuration or other device state modifications made by the > entity holding the lock. > > Parameters: > > session-id: Session identifier of the NETCONF session to be > terminated. If this value is equal to the current session ID, > an "invalid-value" error is returned. > > Positive Response: If the device was able to satisfy the request, an > <rpc-reply> is sent that includes an <ok> element. > > Negative Response: An <rpc-error> element is included in the > <rpc-reply> if the request cannot be completed for any reason. > > > Example: > > <rpc message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <kill-session> > <session-id>4</session-id> > </kill-session> > </rpc> > > <rpc-reply message-id="101" > xmlns="urn:ietf:params:xml:ns:netconf:base:1.0"> > <ok/> > </rpc-reply> > > *CHANGE 1 END* > > *CHANGE 2 START* > The following paragraph in Section 8.4.1 would be modified. > > OLD: > > If the device reboots for any reason before the confirm timeout > expires, the server MUST restore the configuration to its state > before the confirmed commit was issued. > > > NEW: > > If the device reboots for any reason before the confirm timeout > expires, the server MUST restore the configuration to its state > before the confirmed commit was issued, unless the confirmed commit > also included a <persist> element, in which case the server MAY continue > the confirmed commit procedure. > > *CHANGE 2 END* > > Finally, looking at the current set of Errata that are already open > against the RFC, we (the chairs) believe that Errata number 5397 should be > deleted and (a new Errata with these contents) be posted. This is being > done to avoid stacking one Errata on top of another. > > Unless there is objection to these changes within the next two weeks, we > will proceed with submitting them to the RFC Editor. > > On Jun 12, 2019, at 2:47 PM, Andy Bierman <andy@yumaworks.com> wrote: > > Hi, > > This is the new text in question: > It appears your intent is (c) since there is no mention at all what > happens if > <persist> was included. The text just says what does not happen in this > case. > > >>> If the device reboots for any reason before the confirm timeout >>> expires, the server MUST restore the configuration to its state >>> before the confirmed commit was issued, unless the confirmed commit >>> also included a <persist> element. >>> >> > > How about adding at the end: > > OLD: > > element. > > NEW: > > element, in which case the server MAY continue the confirmed commit > procedure. > > > Andy > > > > On Wed, Jun 12, 2019 at 1:16 PM Kent Watsen <kent+ietf@watsen.net> wrote: > >> >> Hi Andy, >> >> I object to changing RFC 6241 with an Errata if it attempts to enforce >> protocol behavior >> that the original RFC does not actually specify. (c) is correct for an >> Errata because the original RFC >> is under-specified. Or perhaps: (d) 'persist' MAY span reboots >> >> >> It sounds like we're in agreement. Are you objecting to something I >> wrote in particular? >> >> Kent // contributor >> >> >> > Mahesh Jethanandani > mjethanandani@gmail.com > > > > _______________________________________________ > netconf mailing list > netconf@ietf.org > https://www.ietf.org/mailman/listinfo/netconf >
- [netconf] RFC 6241 Ambiguity Jonathan Hansford
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Jonathan Hansford
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Jonathan Hansford
- Re: [netconf] RFC 6241 Ambiguity Mahesh Jethanandani
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Mahesh Jethanandani
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity jonathan
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity tom petch
- Re: [netconf] RFC 6241 Ambiguity Mahesh Jethanandani
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Mahesh Jethanandani
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Jonathan Hansford
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Jonathan Hansford
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Kent Watsen
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman
- Re: [netconf] RFC 6241 Ambiguity Mahesh Jethanandani
- Re: [netconf] RFC 6241 Ambiguity Andy Bierman