Re: Limited domains ...

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 27 May 2020 23:11 UTC

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Subject: Re: Limited domains ...
To: Robert Raszuk <robert@raszuk.net>, "Zafar Ali (zali)" <zali@cisco.com>
Cc: Andrew Alston <Andrew.Alston@liquidtelecom.com>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, "spring@ietf.org" <spring@ietf.org>, 6man <6man@ietf.org>
References: <75BF2317-5D28-4038-ABB1-31C588ACD165@cisco.com> <DM6PR05MB6348D86E8BE339067C5238E4AEB10@DM6PR05MB6348.namprd05.prod.outlook.com> <30C37AC0-B03A-45B1-BE0F-7E185361BBBC@liquidtelecom.com> <CAOj+MME+kkfTKFQaS1zvW7wgQvLqui6jFQH9-eai6eY32t9fmQ@mail.gmail.com> <b8cd530c-e07b-f74f-0f58-43414441b6ef@gmail.com> <1E239000-24BD-4E8A-A0D0-6876CE666137@cisco.com> <CAOj+MMFCYoHD4hdXvVtfWUup3vbPBi5M-=mWUWHsm_d9RXpybg@mail.gmail.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Message-ID: <a1764b9e-2713-8250-5bdc-dd0eee7bfec8@gmail.com>
Date: Thu, 28 May 2020 11:10:49 +1200
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On 28-May-20 10:39, Robert Raszuk wrote:
...
> Maybe we should just drop right here this "limited domain" restriction/scope for any solution being discussed here ? 

In that case we should definitely never have adopted draft-ietf-6man-segment-routing-header, whose first reference is RFC8402, which is very explicitly a description of a limited doman model:

"Segment Routing domain (SR domain): the set of nodes participating in
 the source-based routing model...   It is expected that all
 nodes in an SR domain are managed by the same administrative entity."

The CRH draft says essentially the same:

"   o  Is designed to operate within a network domain."

    Brian