[AusNOG] AS 4byte support in .au

Philip Smith pfs at cisco.com
Thu Jul 2 09:28:23 EST 2009


Hi Skeeve,

It's totally transparent. http://as4.cluepon.net has some example
configurations showing how.

The only problem for your upstream when their routers cannot support
4-byte ASNs is when they want to apply different AS based policies to
different 4-byte ASN BGP peers - kinda hard to tell the difference
between them when they are all AS23456 (the transition ASN).

But anyone and everyone today who is running BGP is quite happily
passing 4-byte ASNs around, whether they know it or not. :-) Just look
for AS23456 in the AS path.

philip
--

Skeeve Stevens said the following on 2/7/09 07:22 :
> Not if your upstream can't put a 4byte AS in their BGP config to you I am guessing.
> 
> Also, Peering.... Pipe networks and Equinix - anyone know their support for 4byte AS?
> 
> ...Skeeve
> 
> --
> Skeeve Stevens, CEO/Technical Director
> eintellego Pty Ltd - The Networking Specialists
> skeeve at eintellego.net / www.eintellego.net
> Phone: 1300 753 383, Fax: (+612) 8572 9954
> Cell +61 (0)414 753 383 / skype://skeeve
> www.linkedin.com/in/skeeve ; facebook.com/eintellego
> --
> NOC, NOC, who's there?
> 
> 
>> -----Original Message-----
>> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-
>> bounces at lists.ausnog.net] On Behalf Of Edwin Groothuis
>> Sent: Thursday, 2 July 2009 7:09 AM
>> To: ausnog at ausnog.net
>> Subject: Re: [AusNOG] AS 4byte support in .au
>>
>> On Thu, Jul 02, 2009 at 06:59:50AM +1000, Skeeve Stevens wrote:
>>> Any transit providers doing 4byte AS support yet?
>> Wasn't that supposed to be transparent or does that only happen for
>> downlinks?
>>
>> Edwin
>>
>> --
>> Edwin Groothuis         Website: http://www.mavetju.org/
>> edwin at mavetju.org       Weblog:  http://www.mavetju.org/weblog/
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