Hi,

While testing ipv4 routing I found that vpp crashes when supplied with large sets of prefixes, the exact point when vpp goes down changes depending on prefix set and vpp version tested.

Tried 17.10 and 18.01, first consistently crashes at around 1m (though tested only with sequential /24 and /32 prefixes), for the latter it depends on the set, for sequential it's around 390k, while public bgp table does crash pretty randomly around 100-300k, (my file has around 750k routes).

For 17.10, adding less than 1m prefixes works for both scenarios and continues working - adding and deleting it multiple times does not cause any stability issues.
It doesn't seem dependent on heap-size parameter value.

I used both cli "ip route add count" as well as modified router plugin to pull the table from netlink.
Any suggestions are welcome.

--
Konrad Gutkowski
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