Re: [j-nsp] Hardware configuration for cRPD as RR

Why not both add-path + ORR?
-- 

Thomas Scott
Sr. Network Engineer
+1-480-241-7422
[email protected]


On Fri, Dec 8, 2023 at 11:57 AM Saku Ytti via juniper-nsp <
[email protected]> wrote:

> On Fri, 8 Dec 2023 at 18:42, Vincent Bernat via juniper-nsp
> <[email protected]> wrote:
>
> > On 2023-12-07 15:21, Michael Hare via juniper-nsp wrote:
> > > I recognize Saku's recommendation of rib sharding is a practical one
> at 20M routes, I'm curious if anyone is willing to admit to using it in
> production and on what version of JunOS.  I admit to have not played with
> this in the lab yet, we are much smaller [3.5M RIB] worst case at this
> point.
> >
> > About the scale, I said routes, but they are paths. We plan to use add
> > path to ensure optimal routing (ORR could be another option, but it is
> > less common).
>
> Given a sufficient count of path options, they're not really
> alternatives, but you need both. Like you can't do add-path <max>, as
> the clients won't scale. And you probably don't want only ORR, because
> of the convergence cost of clients not having a backup option or the
> lack of ECMP opportunity.
>
> --
>   ++ytti
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