[ppml] Proposed Policy: 4-Byte AS Number Policy Proposal

Owen DeLong owen at delong.com
Tue Dec 13 02:14:40 EST 2005


I think it's fine, although, I'm not sure we need nibble separation rather
than just two 16 bit fields as originally proposed.

I think AS 45.1234 (equivalent to 2,950,354 or 45*65536+1234) is fine.

I suspect that is what you meant, but, a nibble is 4 bits or one hex digit.

Owen


--On December 13, 2005 5:14:05 PM +1100 Geoff Huston <gih at apnic.net> wrote:

> Your point about syntactical confusion with AS number communities is well
> taken.
>
> What about a dot as the nibble separator within the AS number then?
>
> Geoff
>
>
>
> At 05:07 PM 13/12/2005, Owen DeLong wrote:
>> In general, I like the policy, however, I think the nomenclature is a bad
>> idea as specified below:
>>
>>>          Nomenclature
>>>
>>>          It is proposed to identify 4-byte AS Numbers using a syntax of
>>>          <high order 16 bit value in decimal>:<low order 16 bit value
>>>          in decimal>. Accordingly, a 4-byte AS number of value 65546
>>>          (decimal) would be identified as "1:10".
>> That fits really well with the current ASN:Comm syntax used for
>> communities... NOT!  This will create no end of confusion by
>> using this nomenclature.  Is 45:1234 AS45 community 1234 or
>> is it AS45:1234?  What about communities within 16 bit ASNs?
>> Will it then become AS45:1234:5678?
>>
>> Perhaps using dot as a separator as in 45.1234 instead would be a better
>> idea.  Perhaps hyphen, perhaps something else.  I really don't care, but,
>> I'd hate to see : used as it will do nothing but create confusion.
>>
>> Owen
>>
>> --
>> If this message was not signed with gpg key 0FE2AA3D, it's probably
>> a forgery.
>>
>>
>>
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>



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