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Re: [Snac] Router using Ipv6 prefix length = 67

Kiran Makhijani <kiran.ietf@gmail.com> Wed, 07 June 2023 21:15 UTC

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From: Kiran Makhijani <kiran.ietf@gmail.com>
To: Ted Lemon <mellon@fugue.com>
CC: Michael Richardson <mcr+ietf@sandelman.ca>, "snac@ietf.org" <snac@ietf.org>
Thread-Topic: [Snac] Router using Ipv6 prefix length = 67
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Subject: Re: [Snac] Router using Ipv6 prefix length = 67
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From: Ted Lemon <mellon@fugue.com>
Date: Wednesday, June 7, 2023 at 1:59 PM
To: Kiran Makhijani <kiran.ietf@gmail.com>
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, snac@ietf.org <snac@ietf.org>
Subject: Re: [Snac] Router using Ipv6 prefix length = 67
On Wed, Jun 7, 2023 at 2:36 PM Kiran Makhijani <kiran.ietf@gmail.com<mailto:kiran.ietf@gmail.com>> wrote:

  1.  besides defining the usable prefix with prefix-length 64 bits, does it make sense to add reference to 7084 section 4.3 as suggested? (I think I’d prefer that but then I had assumed prefix will always be /64).

Are you referring to L-2?
>> Yes. when Jonathan pointed out this, it was immediately clear. So, I felt it may be worthwhile to add this reference in the text as to why specific prefix length is mentioned with usable prefix.


  1.
  2.  Second question Alan asked was about BR’s (stub-router’s) robustness. So, nothing else to be specified for that. Right?

I think that requiring a PIO to have a prefix length of 64 in order to qualify as a usable prefix addresses the robustness question Alan brought up.
>> Ack! That resolves it for me.
-Kiran

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