Re: [Idr] FW: New Version Notification for draft-wu-idr-flowspec-dip-community-filter-00.txt

Btw same comment applies also
to draft-wang-idr-flowspec-dip-origin-as-filter.

Thx,
R.

On Mon, Mar 4, 2024 at 9:11 PM Robert Raszuk <robert@raszuk.net> wrote:

> Hi,
>
> I am not sure if this is targeting FlowSpec v2 ... but I would like to
> observe that component types as defined in RFC8955 are about data plane.
>
> You are proposing an addition of a control plane entity - namely BGP
> Community Attribute.
>
> I understand that you want to recursively result local installation into
> the data plane all destinations which are advertised in BGP with such
> community, but this is a significant departure from the definition of
> FlowSpec v1.
>
> It is about signalling dynamically a BGP policy which FlowSpec v1 is not
> doing.  With that being said I recommend that if authors of FlowSpec v2 are
> still working on it allowing it to carry BGP policy - then this would be
> the right place to add the proposed encoding into.
>
> As currently defined - stand alone extension - it does not seems to even
> fit https://www.iana.org/assignments/flow-spec/flow-spec.xhtml.
>
> Kind regards,
> Robert
>
>
> On Mon, Mar 4, 2024 at 11:55 AM wutianhao <wutianhao10=
> 40huawei.com@dmarc.ietf.org> wrote:
>
>> Dear all,
>>
>> We've submitted a new draft: draft-wu-idr-flowspec-dip-community-filter.
>>
>> This draft specifies a new BGP Flowspec component type to support
>> community-level filtering. Flowspec rules can be reduced by using the
>> method defining in this draft. It saves a lot of entry spaces on the
>> control plane and forwarding plane, and it would greatly simplify the
>> operation of the control plane, and the more destination prefixes with the
>> same community has, the more obvious the benefit.
>>
>> Review and comments are welcome.
>>
>> Best regards,
>> Tianhao
>>
>> -----Original Message-----
>> From: internet-drafts@ietf.org <internet-drafts@ietf.org>
>> Sent: 2024年2月29日 17:26
>> To: Wanghaibo (Rainsword) <rainsword.wang@huawei.com>; Gejun (Jack, BGP)
>> <jack.gejun@huawei.com>; wutianhao <wutianhao10@huawei.com>;
>> Dingxiangfeng <dingxiangfeng@huawei.com>
>> Subject: New Version Notification for
>> draft-wu-idr-flowspec-dip-community-filter-00.txt
>>
>> A new version of Internet-Draft
>> draft-wu-idr-flowspec-dip-community-filter-00.txt has been successfully
>> submitted by Tianhao Wu and posted to the IETF repository.
>>
>> Name:     draft-wu-idr-flowspec-dip-community-filter
>> Revision: 00
>> Title:    Destination-IP-Community Filter for BGP Flow Specification
>> Date:     2024-02-28
>> Group:    Individual Submission
>> Pages:    7
>> URL:
>> https://www.ietf.org/archive/id/draft-wu-idr-flowspec-dip-community-filter-00.txt
>> Status:
>> https://datatracker.ietf.org/doc/draft-wu-idr-flowspec-dip-community-filter/
>> HTMLized:
>> https://datatracker.ietf.org/doc/html/draft-wu-idr-flowspec-dip-community-filter
>>
>>
>> Abstract:
>>
>>    BGP Flowspec mechanism (BGP-FS) propagates both traffic Flow
>>    Specifications and Traffic Filtering Actions by making use of the BGP
>>    NLRI and the BGP Extended Community encoding formats.  This document
>>    specifies a new BGP-FS component type to support community-level
>>    filtering.  The match field is the community of the destination IP
>>    address that is encoded in the Flowspec NLRI.  This function is
>>    applied in a single administrative domain.
>>
>>
>>
>> The IETF Secretariat
>>
>>
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>>
>