Users Guide

Table Of Contents
937| Voice and Video Dell Networking W-Series ArubaOS 6.5.x| User Guide
The UCC feature requires the PEFNG license.
UCC continues to support all existing functionality provided by ArubaOS 6.3.x. This section includes the
following sub-sections:
l Microsoft® Lync/Skype for Business Visibility and Granular QoS Prioritization on page 937
l UCC Dashboard in the WebUI on page 946
l Viewing UCC Information on page 950
l UCC-W-AirWave Integration on page 951
l UCC Call Quality Metrics on page 953
l Changes to Call Admission Control on page 955
l Troubleshooting and Log Messages on page 955
l UCC Limitations on page 956
Microsoft® Lync/Skype for Business Visibility and Granular QoS Prioritization
ArubaOS provides a seamless user experience for Microsoft® Lync/Skype for Business users using voice or
video calls, desktop sharing, and file transfer in a wireless environment. Microsoft Lync/Skype for Business is
an enterprise solution for UCC. It provides support for voice, video, desktop-sharing, and file-transfer.
Microsoft Lync/Skype for Business uses SIP over TLS for call signaling.
ArubaOS provides value added services such as prioritization of Lync/Skype for Business sessions, call quality
metrics, and visibility by implementing Lync/Skype for Business Application Layer Gateway (ALG). This solution
also provides a dedicated visibility and troubleshooting framework that allows network administrators to fine-
tune and troubleshoot Lync/Skype for Business traffic flow in the network.
As Microsoft Lync/Skype for Business deployments are more widely implemented on wireless networks, it is
important to provide Quality of Service (QoS) for Lync/Skype for Business voice or video calls, desktop sharing,
and file transfer so that there is no visible difference in the user experience between wireless and wired
networks. Lync/Skype for Business ALG offers an enriched solution in terms of QoS, scalable voice, video,
desktop-sharing, and file-transfer. The ALG based solution provides the following value-added services:
l Call Quality Metrics: Call quality details such as Mean Opinion Score (MOS), delay, jitter, and packet loss.
l Call Priority: Call priority is provided for all Lync/Skype for Business sessions irrespective of Call Admission
Control (CAC)limit. Starting from ArubaOS 6.4.x, Lync/Skype for Business sessions are prioritized based on
session-specific requirements. Voice calls get highest priority, followed by video and desktop sharing. File-
transfer gets the least priority.
l Call and Client information: Details about Lync/Skype for Business call types and statistics through CLI.
The commands are discussed later in this section.
l Deterministic Solution: A dedicated visibility and troubleshooting framework that allows network
administrators to fine-tune and troubleshoot Lync/Skype for Business traffic flow in the network. This
solution provides an enriched performance which uses Deep Packet Inspection (DPI).
l Call Admission Control: Starting from ArubaOS 6.4.x, Lync/Skype for Business sessions do not come
under the purview of call count based CAC and bandwidth based CAC. For more information, see Changes
to Call Admission Control on page 955.
To take advantage of ArubaOS 6.4.x UCC Lync/Skype for Business ALG, it is recommended to use the
Microsoft Lync/Skype for Business SDN Interface. ArubaOS supports all versions of Lync SDN Interface up to