Comment # 11 on bug 1094232 from Marco Varlese

(In reply to Markos Chandras from comment #10)
> Issue reported upstream since OvS seems to be using an internal symbol.
> 
> https://mail.openvswitch.org/pipermail/ovs-dev/2018-May/347430.html
> 
> However, give this is a backport, it's very strange that it made it all the
> way to stable branches if this symbol is truly private.

I feel that what has happened is this:
* during OvS development, the OvS was built/linked against master-branch of
DPDK;
* for the actual release, OvS is advertised to be built/linked against DPDK x.y
(18.02) version which is not exporting/exposing that symbol hence the issue.