Method and apparatus for round trip delay kpi monitoring in live network using user plane probe session
AssigneeAlcatel Lucent
InventorsSuat R. Eskicioglu, Nausheen Naz
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Abstract
A method and apparatus for Round Trip Delay KPI Monitoring in a live network using a user plane probe session is disclosed for measuring round trip delays in a manner that allows latency to be apportioned to network elements. The method and apparatus for Round Trip Delay KPI Monitoring in a live network using a user plane probe session includes transmitting a loopback packet containing a probe session indicator and capturing timestamps of arrival and departure times at each network element traversed by the loopback packet, and then transmitting the timestamps to a Network Management System.
Claims6
A method for apportioning delays of a plurality of network elements on a round trip path in a network, said method comprising the steps of:
- transmitting a loopback packet having a probe session indicator along said round trip path;
- determining at each of said plurality of network elements on said round trip path the presence of said probe session indicator, and
- responsive to the presence of said probe session indicator, logging a first timestamp corresponding to the time of receipt of said loopback message, and a second timestamp corresponding to the time of retransmission of said loopback message;
- and
- transmitting at each of said plurality of network elements said first and second timestamps to a network management system.
Dependencies are inferred from the claim text.