Re: [Idr] 2 week WG adoption call - draft-scudder-idr-capability-registry-change (9/20/2018 to 10/4/2018)

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To: Susan Hares <>, "" <>
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Thread-Topic: [Idr] 2 week WG adoption call - draft-scudder-idr-capability-registry-change (9/20/2018 to 10/4/2018)
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Subject: Re: [Idr] 2 week WG adoption call - draft-scudder-idr-capability-registry-change (9/20/2018 to 10/4/2018)
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1) Support WG adoption.


> Please include comments on operational impacts on this proposal.

The main risk seems collision between future allocation and past usage. IMHO the document adequately covers this by calling for past usages, and given the remaining unallocated space in existing FCFS range (74-127)  (i.e. before we reach the collision range).

Also, that collision risk already exists as of today if we consider that "BGP Capability Codes do not meet the criteria for "Reserved for Private Use" described in [RFC5226<>] S. 4.1.". In this regards, the document improves the situation, so the faster the change, the better.

3) Please find below 2 nits and 1 minor comment

:s/ [RFC5226<>]/ [RFC8126<>]



   128-238: First Come First Served


   128: Reserved

   129-238: First Come First Served

(in order to be consistent with    IANA is requested to allocate value 128 as "Reserved".


"   Finally, we invite implementors who have used values in the range

   128-255 to contribute to this draft, so that the values can be

   included in the registry. >

Recalling another thread (from John) some years ago, about whether one could ask for any value or only the next one/the one chosen by IANA...I don't remember its conclusion.
In order to handle post RFC publication contributions, may be we could add a text to ask IANA to allow for request with specific value in the range 129-238.


From: Idr [] On Behalf Of Susan Hares
Sent: Thursday, September 20, 2018 4:11 PM
To: 'idr'
Subject: [Idr] 2 week WG adoption call - draft-scudder-idr-capability-registry-change (9/20/2018 to 10/4/2018)

Greetings all:

Based on the messages on the IDR list, there seems to be interest to start a 2 week WG adoption call for  draft-scudder-idr-capabilities-registry-change-02.txt.  The WG adoption call will go from 9/20/2018 to 10/4/2018.

You can obtain the document quickly by clicking on the link below:

Please include comments on operational impacts on this proposal.

Susan Hares
Co-chair IDR


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