Re: [Idr] I-D Action: draft-sas-idr-maxprefix-inbound-02.txt

heasley <heas@shrubbery.net> Fri, 23 April 2021 22:03 UTC

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Date: Fri, 23 Apr 2021 22:03:33 +0000
From: heasley <heas@shrubbery.net>
To: Robert Raszuk <robert@raszuk.net>
Cc: Job Snijders <job@fastly.com>, max@stucchi.ch, maelmans@juniper.net, "idr@ietf. org" <idr@ietf.org>
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Subject: Re: [Idr] I-D Action: draft-sas-idr-maxprefix-inbound-02.txt
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Thu, Apr 15, 2021 at 04:34:35PM +0200, Robert Raszuk:
> The observation I am trying to make is that IMHO soft in is not really a
> Pre Policy in a sense that you must not apply Prefix Limit to it. Otherwise
> the entire idea of soft-in becomes questionable.

the rib that soft reconfig uses has to be subject to a limit; without that,
the device is not entirely protected from memory exhaustion from a massive
leak (eg: every possible /128).