Documents up-to-dateHEADopnfv-10.0.0stable/jermamaster

According to document guidelines
Release notes
ETSI FEAT03 support and other minor enhancements

JIRA: DOCTOR-143

Signed-off-by: Tomi Juvonen <tomi.juvonen@nokia.com>
Change-Id: Iefa74004dfada376d1ab05c0149029a26f822275

1 files changed, 37 insertions, 0 deletions

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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Monitor Types and Limitations
+=============================
+
+Currently there are two monitor types supported: sample and collectd
+
+Sample Monitor
+--------------
+
+Sample monitor type pings the compute host from the control host and calculates the
+notification time after the ping timeout.
+Also if inspector type is sample, the compute node needs to communicate with the control
+node on port 12345. This port needs to be opened for incomming traffic on control node.
+
+Collectd Monitor
+----------------
+
+Collectd monitor type uses collectd daemon running ovs_events plugin. Collectd runs on
+compute to send instant notification to the control node. The notification time is
+calculated by using the difference of time at which compute node sends notification to
+control node and the time at which consumer is notified. The time on control and compute
+node has to be synchronized for this reason. For further details on setting up collectd
+on the compute node, use the following link:
+:doc:`<barometer:release/userguide/feature.userguide>`
+
+
+Collectd monitors an interface managed by OVS. If the interface is not be assigned
+an IP, the user has to provide the name of interface to be monitored. The command to
+launch the doctor test in that case is:
+MONITOR_TYPE=collectd INSPECTOR_TYPE=sample INTERFACE_NAME=example_iface ./run.sh
+
+If the interface name or IP is not provided, the collectd monitor type will monitor the
+default management interface. This may result in the failure of doctor run.sh test case.
+The test case sets the monitored interface down and if the inspector (sample or congress)
+is running on the same subnet, collectd monitor will not be able to communicate with it.