Package network_monitor_udp :: Module linktest :: Class LinkTest

Class LinkTest

This class implements a udpmon link test. It handles communication with the udpmonsourcenode via actionlib. Feedback information (bandwidth, loss, latency) is recorded into MetricLog objects. The class has support for pre-empting a running test.

Instance Methods

__init__(self, name, goal, actionclient)
Builds a LinkTest object.

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start(self)
Starts the test.

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stop(self)
Stops (preempts) a running test.

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reset_statistics(self)
Resets bandwidth, latency and loss statistics.

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boolean

linkdown(self)
Returns: True if the link is currently down (last measured bandwidth is close to zero).

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set_custom_feedback_handler(self, custom_feedback_handler)
Sets a custom feedback handler.

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Instance Variables
MetricLog	latency Latency measurement log.
MetricLog	loss Packet loss measurement log.
MetricLog	bandwidth Bandwidth measurement log.
	overall_latency Average latency over the test duration (available when test is done)
	overall_loss Average loss over the test duration (available when test is done)
	overall_bandwidth Average bandwidth over the test duration (available when test is done)
	overall_latency_histogram Latency histogram of all packets received during the test (available when test is done)
	started True if test was started
	done True if test has finished (or was preempted succesfully)