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[Bug 1255005] Re: Midonet Plugin performance issues during large amount of ARPs

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Armando Migliaccio <1255005@xxxxxxxxxxxxxxxxxx>
Date: Thu, 01 Oct 2015 00:53:41 -0000
Reply-to: Bug 1255005 <1255005@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: networking-midonet
   Importance: Undecided
       Status: New

** No longer affects: neutron

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https://bugs.launchpad.net/bugs/1255005

Title:
  Midonet Plugin performance issues during large amount of ARPs

Status in networking-midonet:
  New

Bug description:
  If traffic is generated for a large amount of IPs within a range at
  roughly the same time, Midonet will attempt to handle the traffic by
  ARPing, and experience performance problems.

  In order to prevent this, Midonet can blackhole all traffic that is
  not destined for an IP that is assigned to a port or being used as a
  floating IP.

  This can be done by adding a 'blackhole' route to the provider router
  when the external network is created, and adding individual routes for
  ports on the external network.

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