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[AFRINIC-rpd] Academic IPv4 Allocation Policy Second Draft (AFPUB-2013-GEN-001-DRAFT-02)

Mark Elkins mje at
Sat Jan 26 11:11:33 UTC 2013

Lets look at a non university example.

IGF Baku.

Attendance was above that expected - around 1500 to 2000 people.
On the pre-opening day, there were however only 500 people- and the WIFI
worked fine.

I think the organisers banked on about 1000 people - and they had a /22

This they eventually changed to a /21.

There were still problems.

I had both a Laptop, Cell phone and iPad with me. My cell phone has
WhatsApp on it. I do roam but International Data roaming is very
expensive, so I just allow my phone to use the local Wifi. (Even at
home, I keep the Wifi on, software updates can really eat into a 3G data
Whilst in meetings, I usually use my Laptop, but the Apple iPad is on
(despite the screen being blank - etc). So most of the time I am using
three IP addresses. I don't consider myself to be particularly unusual.
For example, so many people have more than one cell phone.

On Sat, 2013-01-26 at 01:07 -0800, SM wrote:
> Hi Badru,
> At 20:18 25-01-2013, Badru Ntege wrote:
> >The statistics are showing the demand for the urban institutions 
> >with the financial resources to build a network that can support 
> >this demand and thus the need to have an idea of the network.  But 
> >out in the real world not all academic institutions have the 
> >resources to build such networks.
> >
> >which is why it is a good idea to have an understanding of the 
> >network size.  if we go by institutional population we might be 
> >introducing a major flaw.
> I'll try and restate what you said in the first 
> paragraph.  University A and B each have 10,000 persons.   University 
> A has the resources to build a network to service these 10,000 
> persons.  University B does not have the resources to build a network 
> to service these 10,000 persons.  If I use population count as a 
> measure I would be giving 50,000 IP addresses to University A and 
> 50,000 IP addresses University B.
> University B is using 5,000 IP addresses only and 45,000 IP addresses 
> are not utilized.  The amount of free IP addresses for the region 
> reaches a level where I cannot provide IP addresses to University C 
> which has a population of 5,000 persons.  Somebody points out that 
> there are 45,000 IP addresses not being utilized at University B.  I 
> cannot do anything about it.

I'd consider allowing a University to state what ratio they'd like to
use. (1:1, 3:1, 5:1) - but for now nothing higher than 5:1 unless they
can provide additional justification. I'd be surprised if universities
did not go for a higher ratio, they may pay more though - and I do
believe that the future is multiple devices.

I wouldn't worry about a non-utilisation problem - unless we suddenly
here of that University trying to sell unused IP's.

> The questions are:
>   (a) Should I fix the non-utilization problem?
>   (b) Is it possible for me to fix the non-utilization problem?
> Regards,
> -sm
> _______________________________________________
> rpd mailing list
> rpd at

  .  .     ___. .__      Posix Systems - (South) Africa
 /| /|       / /__       mje at  -  Mark J Elkins, Cisco CCIE
/ |/ |ARK \_/ /__ LKINS  Tel: +27 12 807 0590  Cell: +27 82 601 0496

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