[j-nsp] maximum-prefixes not enforced on option B gateways

[Saku Ytti]

Hey,

> This is on M120 running 12.3R6-S3 (yes I know, ancient. No, can't upgrade).

Then I recommend 'set system no-bugs'.

> CUST-VRF-FOO.inet.0: 2594 destinations, 3572 routes (2594 active, 0
> holddown, 0 hidden)
> Limit/Threshold: 2000/1600 destinations
>                  BGP:   3572 routes,   2594 active
>
>
> Mar 28 09:03:45  router rpd[1598]: RPD_RT_PREFIX_LIMIT_REACHED: Number
> of prefixes (2593) in table CUST-VRF-FOO.inet.0 still exceeds or
> equals configured maximum (2000)

> Anyone aware of a PR on this? Is this a known limitation?

There are some PRs related to ways routes appear on RIB and that not
all of these ways honour maximum-prefixes. One I found is PR1157842,
but it's not really exact match to yours, provided your config is
realistic and not cherry-picked example of what you believe is
relevant to the problem.
Could you try 'maximum-paths' instead? Just as additional datapoint.

-- 
  ++ytti