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System Env:

  • Server: Dual XeonE5-2670 v2 2.5GHz; 64GB DDR3; 512GB SSD
  • System clock precision is +/- 1 ms
  • 1Gbps NIC
  • JAVA_OPTS="${JAVA_OPTS:--Xms8G -Xmx8G}"

ONOS Apps:

  • drivers
  • metrics
  • openflow

ONOS Config:

  • cfg set org.onosproject.net.topology.impl.DefaultTopologyProvider maxEvents 1
  • cfg set org.onosproject.net.topology.impl.DefaultTopologyProvider maxBatchMs 0
  • cfg set org.onosproject.net.topology.impl.DefaultTopologyProvider maxIdleMs 0

Test Procedure:

  • Switch event generate on ONOS1 by connecting ovs switch to it.
  • Record tshark (tcp syn-ack) and graph event timestamp to calculate differences.

Note: Error bars in the graphs below represent standard deviations. Only the upper error bars are shown.