[j-nsp] asn32: as-path formatting ?
Richard A Steenbergen
ras at e-gerbil.net
Fri May 16 15:32:42 EDT 2008
On Fri, May 16, 2008 at 06:43:07PM +0400, Alexandre Snarskii wrote:
> Since JunOS 9.1, Juniper supports 32-bit AS Numbers (RFC 4893), and release
> notes states that:
> Support for 4-byte AS numbers is also extended to the AS extended-community
> attribute and AS-path regular expressions
> but documentation on defining AS Path regular expressions does not provide
> any examples using 32-byte asn's.
> So, I'm just curious, how should they be formatted ?
> For example, If I want to filter paths originated by Gert Doering's AS3.3,
> should I set up filter as 'as-path as33 "3.3$", or it will be interpreted
> by old rules as '<anything> 3 <any as> 3' and I need to use some other
> syntax ?
> PS: and, Gert, thanks for providing AS3.3, AS-SPACENET and route-object
> with origin: AS3.3 for real-life testing :)
As numbers greater than 65535, like they freaking should be.
:'s don't belong in IP addresses
.'s don't belong in ASNs
Thank you Juniper.
Richard A Steenbergen <ras at e-gerbil.net> http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)
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