[address-policy-wg] 2006-07 – Minimum IPv4 Assignment Window

Dear Colleagues,

During the Address Policy WG session at RIPE 53, we were asked to  
provide statistics showing
  - how many of the requests to make a PA assignment involve  
discussion with the requester; and
  - how much discussion takes place in those requests.

We have prepared a set of statistics showing the number of rounds of  
messages in a ticket. Please note that tickets often include messages  
that are not directly related to the specific request. For instance,  
when an LIR is eligible for an additional allocation discussion can  
also occur on how to register something in the database, or we may  
remind them about an unpaid invoice.

We looked at all the tickets where we approved PA assignments of  
prefixes up to and including /21 during the last three complete  
months of July, August and September in 2006.

This was a set of 1100 tickets.

The attached graph illustrates:
  - 80% of requests are approved immediately, or following just one  
exchange
  - 15% are approved with just two or three messages being exchanged
  - 4% of tickets involve a significant amount of discussion

These figures show that only a small fraction of LIRs need  
significant assistance with their decision making. We will be able to  
dedicate significantly more time to this small group of LIRs if the  
minimum Assignment Window is raised.

I hope you find these data useful when considering my proposal.

The full table of results:

Exchanges         Tickets
0                  673
1                  214
2                  118
3                  48
4                  11
5                  20
7                  6
8                  4
11                 4
12                 2

An archive (available as a stream) of the RIPE 53 Address Policy WG  
webcast is available from our web site at:

mms://webcast.ripe.net/ripe-53/ap.wmv

and my presentation can be found at:

http://www.ripe.net/ripe/meetings/ripe-53/presentations/ 
ipv4_min_aw_size.pdf

Regards,

-- 
leo vegoda
Registration Services Manager
RIPE NCC
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