Redundant AS's

Hank Nussbacher hank at
Thu Mar 19 05:50:36 UTC 2009

At 12:40 PM 18-03-09 -0700, goemon at wrote:
>On Wed, 18 Mar 2009, Hank Nussbacher wrote:
>>At 08:18 AM 18-03-09 +0100, Henk Uijterwaal wrote:
>>>>It's a bit dated now, but the RIPE report, ASN MIA, sounds like what 
>>>>you're looking for...
>>>When I look at this more recently, the conclusion still seems to be
>>>valid: we'll run out of 16 bit ASN's somewhere in 2011 to 2013.  There
>>>are a lot of unused ASN's out there.  Recovering them will postpone the
>>>problem by a few years but it won't solve it.  The basic problem with
>>>recovery is how to decide if an ASN is really no longer used/needed.
>>>There is (still) no mechanism to do this.
>>Why not go after low lying fruit first?  If an ASN was assigned years ago 
>>and hasn't appeared in the RIB for the past year that ASN should be 
>>reclaimed. Send warning emails to the registered contacts as well as to 
>>the assigning LIR and after 3 months - just reclaim it.
>How about just nailing everyone who has invalid contact info? That would 
>certainly be incentive to get it updated. Nothing else seems to work.

How about making it financially worth it?  RIRs charge for resources - like 
IPs and ASNs:
1 ASN = /21 in money terms.  It takes me about 3-5 hours of work to track 
down and get an old unused ASN to be deallocated.  How about updating the 
2010 charging model so that LIRs that return ASNs are compensated?


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