Hi Tom. 

> On Jan 16, 2024, at 10:26 AM, Acee Lindem <[email protected]> wrote:
> 
> Hi Tom, 
> 
>> On Jan 16, 2024, at 06:50, tom petch <[email protected]> wrote:
>> 
>> From: Acee Lindem <[email protected]>
>> Sent: 15 January 2024 20:30
>> 
>> Hi Tom,
>> 
>> Since this YANG model describes the RFC 8362 encodings, those encodings 
>> should be the primary reference all the leaves and identifies.
>> 
>> <tp>
>> 
>> Acee
>> 
>> I think that you are wrong.  The historian in me knows that given a choice 
>> or primary or secondary sources, the secondary can only get it wrong; you 
>> always go back to the primary (unless or until the primary is replaced which 
>> is not the case for most of the definitions here).
> 
> We can disagree then - I have included both references. Note that in any 
> case, someone really want to dig into the contents of an OSPFv3 LSDB would 
> need to reference both RFCs if they were not very familiar with OSPFv3 and 
> the extended encodings.  
> 
> 
> 
>> 
>>> On Jan 13, 2024, at 07:42, tom petch <[email protected]> wrote:
>>> 
>>> From: Lsr <[email protected]> on behalf of The IESG 
>>> <[email protected]>
>>> Sent: 11 January 2024 14:35
>>> 
>> <snip>
>> 
>>> <tp>
>>> Most of my comments on this I-D from August are addressed but I still have 
>>> some doubts.
>>> 
>>> p.11 identity nu-bit
>>> this is not esplained in the referenced RFC8362; RFC5340 A.4.1.1 would be a 
>>> better reference
>> 
>> Agreed. However, I think including both references would be good since RFC 
>> 8362 includes the
>> flags in TLVs
>> 
>>> 
>>> identity la-bit
>>> here RFC8362 changes the meaning so I think the reference to RFC8362 is ok
>> 
>> Actually, for the LA-bit, both references would be good.
>> 
>>> p.11 identity p-bit
>>> this is not esplained in the referenced RFC8362; RFC5340 A.4.1.1 would be a 
>>> better reference
>> 
>> Same as nu-bit.
>> 
>>> p.12 identity dn-bit
>>> this is not esplained in the referenced RFC8362; RFC5340 A.4.1.1 would be a 
>>> better reference
>> 
>> Same as nu-bit.
>> 
>>> p.12 identity e-bit
>>> this is not esplained in the referenced RFC8362; in fact, this one defeats 
>>> me.  It is present in  a diagram, s.3.6,  but with no explanation.  Reading 
>>> RFC5340 it could be A.4.3 but I am not sure
>> 
>> If one is familiar with OSPF, it is clear. For AS External and NSSA metrics, 
>> there are type 1 and type 2 metrics. Type 1 are simply added to intra-area 
>> metric to the originator. Type 2 metrics are considered greater than type 1 
>> metrics. This hasn’t changed since RFC 1247 - just the OSFPv3 and OSPFv3 
>> extended-LSA encodings. Since the description is brief, I’ll include it in 
>> its entirety.
>> 
>> <tp>
>> Indeed I learnt about Type 1 and Type 2 25 years ago and know them well; but 
>> in the modern  context of SR, IPv6, OSPFv3, extended LSA etc I did not 
>> recognise the terse allusion.
> 
> Yes - since it was not that verbose. I included the complete description in 
> the description. 
> 
> 
>> 
>> And why do you not include the AC bit defined in RFC9513?
> 
> We have a separate model for these OSPFv3 segment routing extensions. 
> However, since the AC-bit is not unique to segment routing, I could just as 
> well include it here. We’ll see if I get any more IETF Last Call comments. 

Actually, the ac-bit is already included in this model - 
https://datatracker.ietf.org/doc/draft-ietf-lsr-ospf-srv6-yang/

Thanks,
Acee



> 
> Thanks,
> Acee
> 
> 
>> 
>> Tom Petch
>> 
>> Thanks,
>> Acee
>> 
>> 
>> 
>> 
>>> 
>>> Tom Petch
>>> 
>>> 
>>> 
>>> Abstract
>>> 
>>> 
>>> This document defines a YANG data model augmenting the IETF OSPF YANG
>>> model to provide support for OSPFv3 Link State Advertisement (LSA)
>>> Extensibility as defined in RFC 8362.  OSPFv3 Extended LSAs provide
>>> extensible TLV-based LSAs for the base LSA types defined in RFC 5340.
>>> 
>>> 
>>> 
>>> 
>>> The file can be obtained via
>>> https://datatracker.ietf.org/doc/draft-ietf-lsr-ospfv3-extended-lsa-yang/
>>> 
>>> 
>>> 
>>> No IPR declarations have been submitted directly on this I-D.
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Lsr mailing list
>>> [email protected]
>>> https://www.ietf.org/mailman/listinfo/lsr
>> 
> 

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