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Re: [mat-wg] FW: IP Address utilization of The LIRs

  • To: "Ilyas . Celik" icelik@localhost
  • From: Harald Michl <harald.michl@localhost
  • Date: Fri, 6 May 2011 09:08:24 +0200
  • Cc: "mat-wg@localhost" mat-wg@localhost
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Hi Ilyas,

On 05.05.2011, at 19:00, Ilyas . Celik wrote:

> Dear all,
> There was a question probably from Daniel that he asked what LIR want to see 
> on stats web page.
> As a LIR, I want to see IP address utilization for my AS when I query my AS 
> from stat web site. It would be very nice if we get this information per 
> prefix level.

We have a documentation for that.

> I think we can achieve this using netflow (without using confidential 
> information) information. We can tell each LIR to send netflow data (only 
> source,destination address and AS information. No protocol,port & traffic 
> information to avoid confidential data)  to distributed RIPE netflow servers.

We wouldn't like that and I personally think it wouldn't scale.

> In the MAT-GW presentation, Arbor Atlas presented that they are getting 
> hourly data from 129 different provider. I think we can use this information 
> as well to find exact utilization of the IP Address space of each AS.

We (ACOnet, AS1853) also host an Arbor Atlas box. Maybe I misunderstand how it 
works, but in our case, we only route currently not used ip prefixes to the box 
and it does all the magic. No netflow records where exported to Arbor Atlas. 
Maybe someone from Arbor can correct me if I'm wrong?

> I’m looking forward to go for IPv6 in my network as well but there is fact 
> that most of the network, access devices doesn’t support IPv6 yet. So there 
> is still big demand for IPv4 and I’m sure we have some LIR that they are less 
> than %50 utilization of IP Address. We can take this IPs from these LIRs if 
> they don’t have a plan to use this addresses recently and give it to LIRs 
> which they are really need this.

That won't work either and would lead to an explosion of the IPv4 routing-table 
- in my opinion. Use IPv6 - the sooner the better.

regards from Amsterdam,

> This will more give a time to world to move IPv6.
> Regards,
> Ilyas Celik

 Harald Michl                <harald.michl@localhost
 Vienna University - ACOnet - VIX
 Universitaetsstrasse 7, A-1010 Vienna,  Austria, Europe
 Tel: +43 1 4277 - 14078 (Fax: - 9140)       HM3550-RIPE