Hi,

Thanks for the info, that seems to brought 18.01 up to 1M, although it stops there.
With heap-size manipulation i can get 17.10 much higher (>3M).
While it seems to be purely academical at this point 18.01 showed preference towards sequential prefixes.

For 18.01 there seems to be no difference in maximum amount between 1G - 4G setting, is that expected?

(only tested it with cli)

Konrad

W dniu 01.02.2018 o 10:11 Neale Ranns (nranns) <nra...@cisco.com> pisze:

Hi Konrad,

As of 18.01 the amount of memory available for IP routes is controlled in the startup config with:
  ip {heap-size <value>}

/neale

-----Original Message-----
From: <vpp-dev-boun...@lists.fd.io> on behalf of Konrad Gutkowski <kgutkowski-...@ffs.pl>
Date: Thursday, 1 February 2018 at 03:01
To: vpp-dev <vpp-dev@lists.fd.io>
Subject: [vpp-dev] adding large number of route prefixes

    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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