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[AfriNIC-rpd] Call for Comments for IPv6 HD Ratio Change

John Hay jhay at
Wed May 23 10:28:33 UTC 2007

Hi Duncan,

On Wed, May 23, 2007 at 11:43:58AM +0200, Duncan Martin wrote:
> I do not believe that NRENs are necessarily special as regards the
> desire of a LIR to plan its pattern of assignments to promote
> aggregation within the LIR's network.  In my previous posting I
> described TENET's policy of reserving /44s per university/research
> campus so as to provide for future contiguous assignments to each
> assignee. This follows a recommendation at the Barcelona IPv6 Summit. In
> his posting, Mark Elkins of Posix Systems described his assignment
> planning which provides for geographically oriented aggregation within
> his network.  

I'm just trying to understand the process a little better. If you
reserve /44 per "request", at what stage then do you stop reserving
it? When your block is almost full or after a specified time? Do you
at some stage decide that an university will never need more and then
issue the rest of that /44 to other site(s)? Which means those
newcomers will never have a /44 reserved for them?

Another question, not realy directed at Duncan. Will it happen often
enough, that an "entity" will later on need more v6 space, that it is
really useful to reserve a /44? I can see that if it happens a lot,
the agregation can help the routing tables smaller... Maybe. 

John Hay -- John.Hay at / jhay at

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