Hi Fredy,
On Thu, 7 Jun 2007, Fredy Kuenzler wrote:
I'm building the CDN for Zattoo and as it's some sort of 'anycast'
infrastructure (refer to the presentation @ SwiNOG #14), I have several
geographically dispersed network islands, not connected via a layer-2 link.
Each network island propagates one or more /24 networks, using AS8302.
Now, BGP mechanism prevents AS-pathes like
^[Transit-AS]_8302$
in my case
^13030_8302$
if I'm AS8302 myself.
I know there is some tweak to prevent this default behaviour. Could anyone
give a hint for Foundry and Cisco gear?
you may want to use the "allowas-in" statement in the neighbor
configuration (at least on cisco)
allowas-in Accept as-path with my AS present in it
-> neighbor 1.2.3.4 allowas-in
Kind regards,
Michael
--
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