[j-nsp] Junos L3VPN & AS-PATH LOOP

[Mark Tinka]

On 23/Feb/20 10:46, Saku Ytti wrote:

>
> So from expressiveness point-of-view, junos can approximate ios
> behaviour, so either point-of-view can be implemented. But I'm not
> sure if ios can approximate junos behaviour, maybe with some crazy
> as_path regexg, something like /(\d+) (?!\1 ?)+(\d+ ?)* \1/ (that
> already has problems, but didn't spend too much time:)

I haven't quite thought about that, to be honest :-).

In my mind, that's right up there with exotic things like running 2 RPKI
validators from 2 different vendors. You can, but unlike DNS or IXP
route servers, the attempt seems too "fancy" for the expected value.

Mark.