Re: [Idr] draft-jiang-idr-ts-flowspec-srv6-policy-07.txt

Hi, Susan & WG.

As an operator, I support WG adoption of this draft.
This approach is very useful for on-demand traffic steering with
specific/dynamic traffic patterns.

My answers are inline:

On Wed, Aug 17, 2022 at 10:59 PM Susan Hares <shares@ndzh.com> wrote:

> This begins a 2 week WG adoption call for
> draft-jiang-idr-ts-flowspec-srv6-policy-07.txt
>
> https://datatracker.ietf.org/doc/draft-jiang-idr-ts-flowspec-srv6-policy/
>
>
>
> During your discussion of this draft, please consider:
>
>
>
> 1) Do you agree with extending 8955 and 8956 to carry the
>
> action bit [C] found for IPv4 and IPv6 found
>
> draft-ietf-idr-flowspec-redirect-ip-02.txt
>
>
>
> Figure 1 : Local Administrator
>
>
>
> 0                   1
>
> 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |          Reserved           |C|
>
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>
>
> C = 0 – redirect original flow
>
> C = 1 – redirect copy of original flow
>
>
>
> This bit augments the Redirect to IP action in RFC8955
>
> And RFC8956.
>
>
>

Yes.

> 2) Do you agree with this document use of this feature
>
> in addition to  draft-ietf-idr-flowspec-path-redirect
>
> https://datatracker.ietf.org/doc/draft-ietf-idr-flowspec-path-redirect/
>
>
>
> See the following thread for a discussion of this in March:
>
>  https://mailarchive.ietf.org/arch/msg/idr/HENTMEoiMJGmcMuVz7LTYclCSdw/
>

Yes, this approach provides a unified way for steering traffic into
SR-policies using either SR-MPLS or SRv6 SID-lists.

Note: As discussed before, the same mechanism can also be applied to
policies with SR-MPLS SID-lists.
https://mailarchive.ietf.org/arch/msg/idr/q0If1M-UgoeeM16HR-TXCSWRTAQ/

>
>
> 3) Will this work help deployment of SRv6 networks?
>

Yes.

>
>
> We’ll discuss this draft at the IDR interim on 8/29/2022.
>
>
>
> Cheerily, Susan Hares
>
>
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> https://www.ietf.org/mailman/listinfo/idr
>

Regards,
Nat

Re: [Idr] draft-jiang-idr-ts-flowspec-srv6-policy-07.txt - (8/17/2022 to 8/31/2022