Re: [spring] [Lsr] clarification of locator block and locator node in draft-ietf-spring-srv6-network-programming and draft-ietf-lsr-isis-srv6-extensions

[<[e-mail]>]

Hi Ketan,



From: Lsr [mailto:[e-mail]] On Behalf Of Ketan Talaulikar (ketant)
Sent: Friday, February 28, 2020 6:30 AM


Hi Chris,

I agree with Peter and I would suggest to drop LSR since this is not a protocol specific thing.

I believe the text in draft-ietf-spring-srv6-network-programming clears says what locator block and locator node are. What more details do you think are required?

[Bruno] Speaking as an individual, the draft could possibly clarify the usage of these information/fields by the receiver. Possibly using the same name/term (e.g. SRv6 SID Locator Block length) to ease the references between both drafts.

Thanks,
--Bruno

Thanks,
Ketan

From: Lsr <[e-mail]> On Behalf Of Chris Bowers
Sent: 27 February 2020 22:46
To: [e-mail]; SPRING WG List <[e-mail]>
Cc: Peter Psenak (ppsenak) <[e-mail]>
Subject: [Lsr] clarification of locator block and locator node in draft-ietf-spring-srv6-network-programming and draft-ietf-lsr-isis-srv6-extensions

SPRING and LSR WGs,

I think that we need a much more detailed description of the locator block and locator node in either draft-ietf-spring-srv6-network-programming or draft-ietf-lsr-isis-srv6-extensions.  See original email below.

Thanks,
Chris

On Thu, Feb 27, 2020 at 11:08 AM Peter Psenak <[e-mail]<mailto:[e-mail]>> wrote:
Hi Chris,

On 27/02/2020 17:54, Chris Bowers wrote:
> LSR WG,
>
> Section 9 of draft-ietf-lsr-isis-srv6-extensions-05 defines the  SRv6
> SID Structure Sub-Sub-TLV. In particular, it defines encoding for the
> locator block length and the locator node length.  The text refers to
> [I-D.ietf-spring-srv6-network-programming] for the definition of these
> concepts.
>
> As far as I can tell, the only reference to locator block and locator
> node in draft-ietf-spring-srv6-network-programming-10 is section 3.1
> which has the following text:
>
>     A locator may be represented as B:N where B is the SRv6 SID block
>     (IPv6 subnet allocated for SRv6 SIDs by the operator) and N is the
>     identifier of the parent node instantiating the SID..
>
> I think that we need a much more detailed description of the locator
> block and locator node.

sure, but that would be in the
draft-ietf-spring-srv6-network-programming-10, not in
draft-ietf-lsr-isis-srv6-extensions, as these are not a protocol
specific constructs.

thanks,
Peter

>
> Thanks,
>
> Chris
>

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