Maybe it is out of scope. Or perhaps scope is just too narrow.

Anyhow ...

Imagine I an IXP client advertising a prefix to RS which I want to be
distributed only to some client's ASNs.

So how do I signal such policy using Large Communities keeping in mind that
such prefix is an IPv6 prefix ?

Using extended communities this is easily achievable using  IPv6 Address
Specific Extended Community (value 25): Hint: RFC5701.

Regards,
Robert


On Fri, Jun 7, 2024 at 11:35 PM Job Snijders <[email protected]> wrote:

> It seems out of scope to me
>
> On Fri, 7 Jun 2024 at 23:30, Robert Raszuk <[email protected]> wrote:
>
>> Jeff,
>>
>> True. But we there is clear opportunity to define those scoped for IXP
>> use case.
>>
>> This is BCP so IMO good place to encourage using common encoding for most
>> common needs.
>>
>> Thx,
>> R.
>>
>> On Fri, Jun 7, 2024 at 11:23 PM Jeffrey Haas <[email protected]> wrote:
>>
>>> There is no such thing as a well known large bgp community.
>>>
>>>
>>> Jeff
>>>
>>> On Jun 7, 2024, at 15:51, Robert Raszuk <[email protected]> wrote:
>>>
>>> 
>>> Hi Job/WG,
>>>
>>> Reading the document I have a feeling/suggestion that perhaps this is a
>>> very good time now to define few IXP focused well known Large Communities
>>> such that most often signalled policies between RS and their clients are
>>> well defined and not random among IXPs.
>>>
>>> That may also in fact encourage faster migration to LCs from Extended
>>> Commuities.
>>>
>>> Thx a lot,
>>> Robert
>>>
>>>
>>> On Fri, Jun 7, 2024 at 9:39 PM Job Snijders <job=
>>> [email protected]> wrote:
>>>
>>>> Thanks David, we will incorporate this in the next revision
>>>>
>>>> On Fri, 7 Jun 2024 at 21:15, David Farmer <farmer=
>>>> [email protected]> wrote:
>>>>
>>>>> I reviewed the draft;
>>>>>
>>>>> The Abstract and Introduction says, "It includes guidance for both the
>>>>> Internet Service Provider side peering with Route Servers and IXPs
>>>>> operating Route Servers."
>>>>>
>>>>> However, the document no longer calls for any direct actions by ISPs.
>>>>> Obviously, the actions recommended for IXPs will impact the ISPs using
>>>>> IXPs. However, the statements above imply direct actions by ISPs in
>>>>> addition to IXPs, not indirect impacts on ISPs from IXP actions.
>>>>>
>>>>> You should probably rephrase the above statements to refer to indirect
>>>>> impacts on ISPs unless you expect ISPs to take other direct actions, and 
>>>>> if
>>>>> you do, those other actions need to be more clearly stated.
>>>>>
>>>>> Thanks.
>>>>>
>>>>> On Wed, Jun 5, 2024 at 11:09 AM <[email protected]> wrote:
>>>>>
>>>>>> Internet-Draft draft-ietf-grow-ixp-ext-comms-00.txt is now available.
>>>>>> It is a
>>>>>> work item of the Global Routing Operations (GROW) WG of the IETF.
>>>>>>
>>>>>>    Title:   Recommendation to avoid use of BGP Extended Communities
>>>>>> at Internet Exchange Route Servers
>>>>>>    Authors: Job Snijders
>>>>>>             Stavros Konstantaras
>>>>>>             Mo Shivji
>>>>>>    Name:    draft-ietf-grow-ixp-ext-comms-00.txt
>>>>>>    Pages:   5
>>>>>>    Dates:   2024-06-04
>>>>>>
>>>>>> Abstract:
>>>>>>
>>>>>>    This document outlines a recommendation to the Internet operational
>>>>>>    community to avoid the use of BGP Extended Communities at Internet
>>>>>>    Exchange Point (IXP) Route Servers.  It includes guidance for both
>>>>>>    the Internet Service Provider side peering with Route Servers and
>>>>>>    IXPs operating Route Servers.  This recommendation aims to help the
>>>>>>    global Internet routing system's performance and help protect Route
>>>>>>    Server participants against misconfigurations.
>>>>>>
>>>>>> The IETF datatracker status page for this Internet-Draft is:
>>>>>> https://datatracker.ietf.org/doc/draft-ietf-grow-ixp-ext-comms/
>>>>>>
>>>>>> There is also an HTMLized version available at:
>>>>>> https://datatracker.ietf.org/doc/html/draft-ietf-grow-ixp-ext-comms-00
>>>>>>
>>>>>> Internet-Drafts are also available by rsync at:
>>>>>> rsync.ietf.org::internet-drafts
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> GROW mailing list -- [email protected]
>>>>>> To unsubscribe send an email to [email protected]
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> ===============================================
>>>>> David Farmer               Email:[email protected]
>>>>> Networking & Telecommunication Services
>>>>> Office of Information Technology
>>>>> University of Minnesota
>>>>> 2218 University Ave SE
>>>>> <https://www.google.com/maps/search/2218+University+Ave+SE?entry=gmail&source=g>
>>>>>       Phone: 612-626-0815
>>>>> Minneapolis, MN 55414-3029   Cell: 612-812-9952
>>>>> ===============================================
>>>>> _______________________________________________
>>>>> GROW mailing list -- [email protected]
>>>>> To unsubscribe send an email to [email protected]
>>>>>
>>>> _______________________________________________
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>>>> To unsubscribe send an email to [email protected]
>>>>
>>> _______________________________________________
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>>>
>>>
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