[195258] in North American Network Operators' Group

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Re: Some advice on IPv6 planning and ARIN request, please

daemon@ATHENA.MIT.EDU (=?utf-8?Q?Bj=C3=B8rn_Mork?=)
Tue Jul 11 07:01:20 2017

X-Original-To: nanog@nanog.org
From: =?utf-8?Q?Bj=C3=B8rn_Mork?= <bjorn@mork.no>
To: Mark Andrews <marka@isc.org>
Date: Tue, 11 Jul 2017 13:01:01 +0200
In-Reply-To: <20170711030939.C7DC37E4D5A9@rock.dv.isc.org> (Mark Andrews's
 message of "Tue, 11 Jul 2017 13:09:39 +1000")
Cc: nanog@nanog.org, Thomas Bellman <bellman@nsc.liu.se>
Errors-To: nanog-bounces@nanog.org

Mark Andrews <marka@isc.org> writes:

> If I had 32 departments and were wanting to give them equal sized
> allocations then I'd give them a /53 each which is 2064 subnets
> each.  It isn't that hard to do 8 delegations in the reverse tree
> for each of the 32 departments.  Delegation on nibble boundaries
> is for convience and nothing else.

I believe you under-estimate the importance of sysadmin convenience...

Yes, you *can* do 8 delegations.  And you are of course right - it's not
even hard.  But it does come with a "less convenient" price tag, so
you'd better get something back.  What was that, exactly?  Right, you
saved a /48.  Big deal.


Bj=C3=B8rn

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