Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection

["Sterne, Jason (Nokia - CA/Ottawa)" <[e-mail]>]

OK - I trimmed things a bit and moved a few slides to backup.  There are now 9 slides of "meat" that are the key part of the preso (slides 1-13 minus the various title slides & scope slide).

I fixed up the stuff about the 'selectable' and 'schema-set' lists.

Also incorporated the updated text for issue #40 that Joe and I were discussing and moved that into backup.

Enclosed are the latest.

Jason

From: Reshad Rahman (rrahman) <[e-mail]>
Sent: Monday, March 30, 2020 6:25 PM
To: Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]>; Joe Clarke (jclarke) <[e-mail]>
Cc: Rob Wilton (rwilton) <[e-mail]>; [e-mail]
Subject: Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection

Jason, I took a quick look at the slides (will try to spend more time on them tonight). They do look good, but there’s too many IMO…

Regards,
Reshad.

From: Netmod-ver-dt <[e-mail]<mailto:[e-mail]>> on behalf of "Sterne, Jason (Nokia - CA/Ottawa)" <[e-mail]<mailto:[e-mail]>>
Date: Monday, March 30, 2020 at 6:08 PM
To: "Joe Clarke (jclarke)" <[e-mail]<mailto:[e-mail]>>
Cc: "Rob Wilton (rwilton)" <[e-mail]<mailto:[e-mail]>>, "[e-mail]<mailto:[e-mail]>" <[e-mail]<mailto:[e-mail]>>
Subject: Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection

Thx. How about if I add a bit to paragraph #2 as follows:

OLD:

If the server can only support a limited number of schema-sets in parallel, and the maximum number of schema-sets are currently in use, and a new NETCONF session attempts to use a new valid schema-set (exceeding the maximum number of parallel schema-sets), then the new NETCONF session is disconnected.

NEW:

If the server can only support a limited number of schema-sets in parallel, and the maximum number of schema-sets are currently in use by active NETCONF sessions (or RESTCONF requests), and a new NETCONF session attempts to connect and use a new valid schema-set (exceeding the maximum number of parallel schema-sets), then the new NETCONF session is disconnected.

If the server can only support a limited number of schema-sets in parallel, and the maximum number of schema-sets are currently in use by active NETCONF sessions (or RESTCONF requests), and a new RESTCONF request attempts use a new valid schema-set (exceeding the maximum number of parallel schema-sets), then the RESTCONF request fails and the server returns an error.

Jason

From: Joe Clarke (jclarke) <[e-mail]<mailto:[e-mail]>>
Sent: Monday, March 30, 2020 6:01 PM
To: Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>>
Cc: Rob Wilton (rwilton) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection




On Mar 30, 2020, at 17:03, Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>> wrote:

I've updated the version selection slides a fair bit. Enclosed and comments appreciated.

I added some details to the issues and reordered things to put the NETCONF issues first.

Looks good.  I like the clarification on slide 14, but I admit I had to read it twice to see that you’re not talking config in paragraph 2.



I added a slide to show relationships between packages, datastores and schema-sets.

Love slide 9.  Clarifies it well I think.

Joe



I added a slide to defer questions about the other drafts.





Jason

From: Joe Clarke (jclarke) <[e-mail]<mailto:[e-mail]>>
Sent: Monday, March 30, 2020 4:15 PM
To: Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>>
Cc: Rob Wilton (rwilton) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection





On Mar 27, 2020, at 19:04, Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>> wrote:

Hi Joe,

I like your point about the filename issue, but that's something for yang-module-versioning (not these slides).

Ah, yeah.  Sorry.  I saw ‘@‘ and went to the filename thing since I had that on my mind.




Our version-selection slides do have an issue about numbering but it is about the schema-set name.

I added the bullet you mention to the last slide.

Thanks.

Joe




Jason


From: Joe Clarke (jclarke) <[e-mail]<mailto:[e-mail]>>
Sent: Friday, March 27, 2020 9:50 AM
To: Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>>
Cc: Rob Wilton (rwilton) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: Re: [Netmod-ver-dt] prelim IETF 107 slides for version selection

Since I had the issues part, a few perhaps aids there.

For the file naming issue, I think showing an example of:

ietf-interfaces@2018-02-20

vs.

ietf-interfaces@1.3.0<mailto:ietf-interfaces@1.3.0>

Is one way to illustrate the challenge.  But smart parsers will deal with this easily.  I think the bigger risk is something like this:

vendor-example@2020-03-29

vs.

vendor-example@2020-02-31

Where the latter is the second vendor release of 2020 with build ID 31 (something silly, but doable with revision-labels).  Parsers that blindly assume something that looks like a date is may have other issues.  Sure, we could add verbiage that a revision-label can’t look like a date or a semver, but perhaps it’s easier to have:

vendor-example#2020-02-31

===

On the last slide, based on our discussion the other day, should we add a bullet that says, “DT prefers this to remain as one document in netconf”?

Joe




On Mar 26, 2020, at 18:23, Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>> wrote:

Thx. See inline.
Jason

From: Rob Wilton (rwilton) <[e-mail]<mailto:[e-mail]>>
Sent: Tuesday, March 17, 2020 7:50 AM
To: Sterne, Jason (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: RE: prelim IETF 107 slides for version selection

Hi Jason,

Slides generally look good to me.

A few minor comments:

On slide 2:

•        Perhaps change “some on the client” to “minimal for the client”[>>JTS: ] changed

On slide 3:

•        I wasn’t sure that the second bullet completely scans.  Should it just be “It can also be used to allow clients to select between YANG schema defined by different organizations”?[>>JTS: ] Yes - changed

Between slides 4 and 5:

•        I think that it might be helpful to have an extra slide after 4, that covers the “selectable” leaf-list, and perhaps default too, both in configuration and <operational>
[>>JTS: ] Added new slide 5 - please take a look.

•        Having a diagram to show the relationship between packages, datastore-schema, schema-sets, might be helpful, but only if someone has the time to do them.
[>>JTS: ] I'll try to get some cycles to do that.  Basically that schema-sets are comprised of packages (or rather packages for each datastore).  But what do you mean by datastore-schema? That term is mentioned once in the version selection draft. Is it defined somewhere else?

Thanks,
Rob


From: Netmod-ver-dt <[e-mail]<mailto:[e-mail]>> On Behalf Of Sterne, Jason (Nokia - CA/Ottawa)
Sent: 13 March 2020 20:37
To: [e-mail]<mailto:[e-mail]>
Subject: [Netmod-ver-dt] prelim IETF 107 slides for version selection

Hi guys,

I put together some slides on the changes to version selection since the previous IETF in case someone needs to present these next week while I'm away (seems unlikely though).

Joe - can you take ownership of this preso for next week and add your "Issues"?

If we don't present before I'm back (Monday March 23) then I can help polish them further but I wanted to at least get this part to the DT.

Rgds,
Jason
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