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

Geoff Huston gih at apnic.net
Tue Dec 13 16:33:40 EST 2005

>Ok. It is possible to peer using this special reserved asn even with 16bit
>asn-only capable router but things are not going to be entirely right - 
>basically this would be the same as trying to use same private asn with
>multiple customer networks and leaking it all out to the net. Not a pretty

not pretty - and the view outward from these domains would be that AS23456 
would start to appear all over the pace ... but it would work, and there is 
no a priori requirement for the 2-byte AS domain to upgrade its BGP to be 
4-byte capable.

>Also I do have to note that anyone who actually got 32bit ASN would need
>to have router that is capable of using it. This one is absolutely required.



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