Re: [Idr] Clarifications on draft-ietf-idr-segment-routing-te-policy

Hi,

I must disagree.

NLRI format of RTC does not contain those two octets:   | 0x01 or 0x41 |
Sub-Type |

Sorry, R.

On Thu, Apr 13, 2023 at 2:20 PM tanzhen (A) <tanzhen6=
40huawei.com@dmarc.ietf.org> wrote:

> Robert,
>
>
>
> Thank you for comments.
>
>
>
> I believe that this draft should be called an extension of application
> scenarios of RTC, since it doesn’t violet the concept of RTC. It is
> written in RFC 4684, Chapter 4 that, I quote below:
>
> “Route targets can then be expressed as prefixes, where, for instance, a
> prefix would encompass all route target extended communities assigned by a
> given Global Administrator [6].”
>
> For reference [6], it points to RFC 4360,“BGP Extended Communities
> Attribute”. And the format and meaning of "IPv4 Address Specific Extended
> Community" is actually defined in this document, precisely in section 3.2.
>
>
>
> We didn't define an incompatible format of NLRI for the same AFI/SAFI. And
> therefore, this is not broken.
>
>
>
> Regards.
>
> Zhen.
>
>
>
> *From:* Robert Raszuk [mailto:robert@raszuk.net]
> *Sent:* Thursday, April 13, 2023 5:24 PM
> *To:* tanzhen (A) <tanzhen6@huawei.com>
> *Cc:* Ketan Talaulikar <ketant.ietf@gmail.com>; li_zhenqiang@hotmail.com;
> authors <draft-ietf-idr-segment-routing-te-policy.authors@ietf.org>;
> idr@ietf.org; idr-ads <idr-ads@ietf.org>; idr-chairs <idr-chairs@ietf.org>
> *Subject:* Re: [Idr] Clarifications on
> draft-ietf-idr-segment-routing-te-policy
>
>
>
> Hi,
>
>
>
> > https://datatracker.ietf.org/doc/draft-ding-idr-rtc-for-bgp-flow-sr/
>
>
>
> I am sorry but this is completely broken.
>
>
>
> You can not have different formats of NLRIs for the same AFI/SAFI.
>
>
>
> Please do not call this RTC extension as this has nothing to do with RTC.
>
>
>
> Route Target is not "IPv4 Address Specific Extended Community"
>
>
>
> If you are willing to provide such filtering please use a different name
> and a different (new) AFI/SAFI.
>
>
>
> Regards,
>
> Robert.
>
>
>
>
>
> On Thu, Apr 13, 2023 at 11:13 AM tanzhen (A) <tanzhen6=
> 40huawei.com@dmarc.ietf.org> wrote:
>
> Ketan, Zhenqiang Li,
>
>
>
> Hi.
>
>
>
> We posted a new draft last month, which might be a good way to solve your
> problem.
>
>
>
> In the draft, we proposed to extend the application scenarios of RTC to
> BGP Flow and BGP SR-Policy for outbound route filtering (ORF). You can find
> more details here:
> https://datatracker.ietf.org/doc/draft-ding-idr-rtc-for-bgp-flow-sr/
>
>
>
> Looking forward to your comments.
>
>
>
> Thank you.
>
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