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?

Thanks,
Fredy
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