[arin-ppml] 2-byte ASN policy

Mike Hammett arin at ics-il.net
Thu Apr 7 08:36:54 EDT 2016

I believe both times I requested an ASN last year (my IX and my ISP) they asked if I wanted a 2 byte or a 4 byte. For the IX, I chose 2 and for my ISP I chose 4. 

Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

----- Original Message -----

From: "Scott Leibrand" <scottleibrand at gmail.com> 
To: "John Curran" <jcurran at arin.net> 
Cc: arin-ppml at arin.net 
Sent: Wednesday, April 6, 2016 7:46:54 PM 
Subject: Re: [arin-ppml] 2-byte ASN policy 

On Wed, Apr 6, 2016 at 4:24 PM, John Curran < jcurran at arin.net > wrote: 

On Apr 6, 2016, at 4:17 PM, Bill Buhler < bill at tknow.com > wrote: 
> Thanks for the clarification John, 
> So I understand you, regarding IPv4 you are recycling the deadbeat resources already. 
> My impression though is that you aren’t doing the same with 2-byte ASN? I think it would be good policy to begin reclamation of those resources. 

We are recycling ASN’s that are returned - after the hold period we confirm that 
they’re not in active routing and then will reissue if someone makes an explicit 
request for a 2-byte ASN. 

If a 2-byte ASN comes available and no one immediately requests an explicit 2-byte ASN, will you reissue the 2-byte ASN to the next non-explicit ASN requester (who presumably would be just as happy with a 4-byte ASN), or do you keep the 2-byte ASN in inventory until the next explicit 2-byte ASN request? 


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