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Re: [Idr] I-D Action: draft-ietf-idr-rpd-05.txt

Robert Raszuk <robert@raszuk.net> Wed, 01 July 2020 09:22 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 01 Jul 2020 11:21:57 +0200
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To: Huaimo Chen <huaimo.chen@futurewei.com>
Cc: "idr@ietf.org" <idr@ietf.org>
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Subject: Re: [Idr] I-D Action: draft-ietf-idr-rpd-05.txt
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Hi,

I have two small suggestions about this document.

1.

I think current suggestion of NLRI content to include peer IP address is
very unfortunate. I would recommend to replace it with either sender IP
address or policy group ID.

Why ? As the target of the policy will be already included in the wide
communities and may conflict or extend the currently defined NLRI value.

For example if you ask to apply policy X to ASN 100 it does not matter what
peer address is.

If you need policy to be applicable to a specific peering point just also
encode it consistently within the wide community itself.

2.

While the text is clear that such policy would apply to inbound and
outbound peers I think it would be good to state that this is about
external policy propagation.

Unless you also intend to push internal policies which would be a
completely different game.


Many thx,
R.

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