I share your confusion Randy. It seems like perhaps Jakob answered a
slightly different question and his answer is roughly.
a) Use this as-set feature to ensure valid set of ASNs from given peer
b) Validate prefix using RPKI (I'm assuming with rejecting unknowns
and invalids)
c) Don't punch in pre
hi jakob,
i am confused between
> There is no expansion to prefix-set.
and your earlier
>> We have introduced the scalable as-set into the XR route policy language.
>> as-path-set does not scale well with 1000's of ASNs.
>> Now, you don't need to expand AS-SET into prefix-set, just enter it dir
Broadly speaking, I would say if you announce a prefix to the DFZ, then you
are saying "I can deliver anything in this range where it is supposed to
go."
That being said, there are moments like Bill said that an outage or other
issue prevents that from happening, and also circumstances that a lack
On Mon, Aug 16, 2021 at 7:10 AM Jason Pope wrote:
>
> >On Thu, Aug 12, 2021 at 9:41 AM Hank Nussbacher wrote:
> >> How does this break the Internet?
> >
> >A originates 10.0.0.0/16 to paid transit C
> >B originates 10.0.1.0/24 also to paid transit C
> >C offers both routes to D. D discards 10.0.1
>On Thu, Aug 12, 2021 at 9:41 AM Hank Nussbacher
wrote:
>> On 12/08/2021 17:59, William Herrin wrote:
>> > If you prune the routes from the Routing Information Base instead, for
>> > any widely accepted size (i.e. /24 or shorter netmask) you break the
>> > Internet.
>>
>> How does this break the I
Hi Jakob,
but the as-set only checks the origin AS in the announcement, it doesn't
lookup the prefix <-> as relation from RADB/RIPE/Whatever, as i understand it
correctly!
Or is there some lookup mechanism as Ytti/Mark mentioned?
regards,
tim
On Sun, Aug 15, 2021 at 01:46:40AM +, Jakob He
Saku,
The feature is in 7.2.1. The documentation has not made it to the
command reference.
There is no expansion to prefix-set. The command checks the origin-AS
in the route. You should confirm the origin-AS with the prefix
using RPKI and/or another route-policy statement.
This way the final rout
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