HP Network Optimizer SDN Application - Microsoft Lync 1.0.5 Release Notes

Description

HP Network Optimizer SDN Application - Microsoft Lync is an innovative SDN application enabling

automatic QoS deployment on a dynamic basis for Lync calls. It lets you define DSCP values for

various Lync services, including voice calls, video calls, and application sharing. Once a Lync call

is initiated, Net Optimizer - Lync automatically applies the predefined DSCP values to the

corresponding flows on edge switches using OpenFlow to deliver a better user experience and

reduce operational costs.

Fixed issue

(CR148736) Net Optimizer - Lync works in conjunction with Microsoft Lync. A Microsoft supplied

client called the Lync SDN Manager (LSM) notifies Net Optimizer - Lync when Lync calls have

started and ended. LSM was sometimes not notifying Net Optimizer - Lync when Lync calls had

ended, resulting in Net Optimizer - Lync assuming the Lync calls were still active. These were

referred to as “Stale Calls”. Net Optimizer - Lync 1.0.5 implemented a workaround to close stale

calls automatically.

Finding the latest documentation

To view the latest version of these release notes and the guides for Net Optimizer - Lync, see the

HP SDN information library at http://www.hp.com/go/sdn/infolib.

Product requirements

The OpenFlow instance on the HP switches must be set to version 1.3 only for Net Optimizer -

Lync to work correctly in all HP switch hardware configurations. See the HP VAN SDN Controller

and Applications Support Matrix at http://www.hp.com/go/sdn/infolib for more information

about the switch requirements. Refer to the HP Switch Software OpenFlow Administrator’s Guide

for the switch configuration steps.

For additional product requirements, also refer to the HP VAN SDN Controller and Applications

Support Matrix.

Issues and suggested actions

• (CR146221)Destination DPID/Port is missing under flow entries when a caller is unrecognized

and the callee is behind the gateway.

• (CR148163)Sometimes Net Optimizer - Lync does not receive notification of a call from Lync

SDN Manager. The lack of notification results in a call that is not prioritized. An error message

resembling the following is written to the C:\logdir\LyncDiagnostics.log file on the

Lync FE server, running Lync Dialog Listener and connected to the Lync Client from which the

call originated:

Resolution: Restart the Lync SDN Manager service for each instance of Lync SDN Manager.

• (CR148300)In a multi-tier OpenFlow network where OpenFlow devices are deployed between

the edge devices with Lync clients, the DSCP markings done at the edge devices will get reset.

This makes the Lync calls prioritized only at the edge switches, but not at the intermediate

OpenFlow switches in their path.

• (CR148563, CR148578)QoE metrics take a longer time to display in Net Optimizer - Lync,

as the application’s database grows. For example, when the database for Net Optimizer -

Lync contains 650,000 entries, it might take 11 seconds for the QoE metrics to be displayed.