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Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce

Robert Raszuk <robert@raszuk.net> Thu, 16 June 2022 09:58 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Thu, 16 Jun 2022 11:57:55 +0200
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: Aijun Wang <wangaijun@tsinghua.org.cn>, "lsr@ietf.org" <lsr@ietf.org>
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Subject: Re: [Lsr] draft-ppsenak-lsr-igp-ureach-prefix-announce
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Bruno,

Actually I like your flag suggestion for an additional and different
reason.

If someone does not need to flood UPAs in any remote area it is trivial to
filter those on the ABRs connecting those areas to the core. Otherwise such
filtering could be more difficult if at all possible.

Thx,
R.


[Bruno] I agree that the encoding for the explicit signaling is totally
> open to discussion.
>
> I proposed a flag since:
>
> - all we need is a binary information
>
> - given the use case, this RFC7794 sub-tlv (type 4) seems likely to be
> already present. (e.g. X or R flag, possibly N-flag)
>
>
>
> Thanks for your email and your contribution to this topic.
>
> Best regards,
>
> --Bruno
>
>
>

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