Re: [mpls] Codepoint for OSPFv3 protocol in SPRING LSP-Ping and LSP-Trace

["Nagendra Kumar Nainar (naikumar)" <[e-mail]>]

Hi Ketan/Mustapha,

During the time of this RFC development, we used OSPF as codepoint for both v2 and v3.

I think a separate code point for OSPFv3 would be more cleaner.

Thanks,
Nagendra

From: "Aissaoui, Mustapha (Nokia - CA/Ottawa)" <[e-mail]>
Date: Wednesday, September 11, 2019 at 2:31 AM
To: "Ketan Talaulikar (ketant)" <[e-mail]>, "[e-mail]" <[e-mail]>, "[e-mail]" <[e-mail]>, "[e-mail]" <[e-mail]>
Cc: "[e-mail]" <[e-mail]>
Subject: RE: Codepoint for OSPFv3 protocol in SPRING LSP-Ping and LSP-Trace
Resent-From: <[e-mail]>
Resent-To: Nagendra Kumar <[e-mail]>, <[e-mail]>, <[e-mail]>, <[e-mail]>, <[e-mail]>, <[e-mail]>
Resent-Date: Wednesday, September 11, 2019 at 2:31 AM

Thank you Ketan.

I believe it would be appropriate to have a separate codepoint for each OSPFv2 and OSPFv3 protocols. Within OSPFv3 we can distinguish the family IPv4 and IPv6 based on the prefix of the SID.

Mustapha.

From: Ketan Talaulikar (ketant) <[e-mail]>
Sent: Wednesday, September 11, 2019 12:21 AM
To: [e-mail]; Aissaoui, Mustapha (Nokia - CA/Ottawa) <[e-mail]>; [e-mail]; [e-mail]
Cc: [e-mail]
Subject: RE: Codepoint for OSPFv3 protocol in SPRING LSP-Ping and LSP-Trace

Hi Mustapha,

The RFC8287 refers to OSPF and not OSPFv2. Conventionally, we use the term OSPF when we are referring to both OSPFv2 and OSPFv3. I am not sure if this was the authors’ objective.

One might assume that OSPFv2 is purely for IPv4 and OSPFv3 for IPv6, but this is not true (see RFC5838).

I would it is better to have two separate code-points for OSPFv2 and OSPFv3 in this case.

Thanks,
Ketan

From: mpls <[e-mail]<mailto:[e-mail]>> On Behalf Of [e-mail]<mailto:[e-mail]>
Sent: 09 September 2019 18:23
To: Aissaoui, Mustapha (Nokia - CA/Ottawa) <[e-mail]<mailto:[e-mail]>>; [e-mail]<mailto:[e-mail]>; [e-mail]<mailto:[e-mail]>
Cc: [e-mail]<mailto:[e-mail]>
Subject: Re: [mpls] Codepoint for OSPFv3 protocol in SPRING LSP-Ping and LSP-Trace

RFC 8287 is a product of the MPLS WG so in the absence of answer on the SPRING mailing list, I’m redirecting the question to the MPLS WG.

--Bruno

From: spring [mailto:[e-mail]] On Behalf Of Aissaoui, Mustapha (Nokia - CA/Ottawa)
Sent: Friday, August 2, 2019 12:29 AM
To: [e-mail]<mailto:[e-mail]>
Subject: [spring] Codepoint for OSPFv3 protocol in SPRING LSP-Ping and LSP-Trace

Dear all,
I am not sure if this was discussed during the development of RFC 8287 – “Label Switched Path (LSP) Ping/Traceroute for Segment Routing (SR) IGP-Prefix and IGP-Adjacency Segment Identifiers (SIDs)                         with MPLS Data Planes”, but I could not find anything in the SPRING mail archive.

Prefix SID and adjacency SID which are originated in an OSPFv3 instance (IPv4 or IPv6 instance) do not have a protocol ID assigned to them in the Segment ID Sub-TLV, as well as in the Label Stack Sub-TLV of the Downstream Detailed Mapping TLV.

Should we assign the next available IANA codepoint values or was there a rationale for omitting them?

Regards,
Mustapha.

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