This document discusses supporting Unified Communications and Collaboration (UCC) applications like Microsoft Lync over wireless networks. It covers the challenges of UCC over wireless, how to optimize wireless networks for Lync through classification and prioritization of Lync traffic, and visualization of UCC performance using Aruba's network management tools. Examples are provided of integrating Lync with Aruba wireless networks for on-premise, hosted, and online Lync deployments. Lessons learned from Aruba Lync deployments and a demonstration of Aruba's UCC visualization capabilities are also summarized.

1. #ATM15 |
UCC on Aruba Wi-Fi
Balajee Krishnamurthy
Ashutosh Dash
March, 2013
@ArubaNetworks

2. CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved2#ATM15 |
Agenda
• Trends
• UCC Challenges
• Aruba Lync Integration
• Lessons learned from Aruba Lync roll out
• Demo
@ArubaNetworks

3. 3 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Transition Content
Current Trends
• Voice as a “standalone application” is going
away
• SIP, SCCP, SVP, H323, Vocera, NoE
• UCC is the “new wave” in IT
• Skype, Lync, FaceTime, Jabber, Hangouts etc.
• Next “BYOD” problem
@ArubaNetworks

4. 4 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Why Microsoft Lync?
• Integration with AD, Outlook, Office etc.
• Unified mobile client for BYOD
• On-premise and Cloud based deployment
models
• Enable collaboration with mobility
• Strategic partner and customer of Aruba

5. 5#ATM15 |
Challenges with UC over
Wireless
@ArubaNetworks

6. 6 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Challenges with UC over Wireless
• Diversity of
Clients
• AV
• App
incompatibility
@ArubaNetworks
• AP placement
• Channel Capacity
• AP Capacity
• Tx/Rx Characteristics
• Interference
• Mobility
• QoS on wireless • QoS on wire
• Queue
overflows/drops
• Routing/path changes
• WAN
• UC server monitoring

7. 7 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Essentials to support Lync over Wi-Fi
• Classification & prioritization of Lync
• Wi-Fi optimized for Lync
• Real time and pro-active visibility

8. 8#ATM15 |
Lync
@ArubaNetworks

9. 9 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Types of Lync Deployments
• Lync On-Prem
• Lync server farm is hosted on premise
• Hosted Lync
• Lync server farm is hosted on a private cloud
• Lync Online
• Lync server farm is hosted by Microsoft

10. 10 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync On-Prem/Hosted Lync
Exchange Server
QoE Server/
Monitoring
Active Directory
Lync Federated
Partners
Reverse Proxy
Lync Edge Server
Lync FE Server Pool/
Lync SDN API Dialog Listener
Lync SDN Manager
Internet
Wi-Fi Mobility
Controller
• Benefits from all
Lync Server
functionalities
• Maximum
flexibility
• Interoperate with
other on-
premise
investments
• Works with
Exchange and
SharePoint

11. 11 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Transition Content
Lync Online
@ArubaNetworks
• Uptime Assurance
• Using corporate
directory
• Reduced administration

12. 12 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Transition Content
Lync Call Type/Flow
@ArubaNetworks
Call Type Signaling Traffic Media Traffic
Peer-to-Peer Session
Lync server pool
UC endpoint <-> UC endpoint
Conference Session UC endpoint <-> Lync server
pool
PSTN/Mediation session UC endpoint -> (Mediation
server)* -> PSTN gateway/IP
PBX
Content Sharing UC endpoint <-> UC
endpoint/Lync server pool

13. 13 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync Network Bandwidth Requirements
Modality Description Max BW Typical BW
IM, Presence and
signaling
Nonmedia elements 2 Kbps 1.6 Kbps
Voice RT Audio Wideband 62 Kbps 39 Kbps
Conference voice G722 100.6 Kbps 46.1 Kbps
Video - small H264 at 320x180 250 Kbps 200 Kbps
Video - medium H264 at 640x480 800 Kbps 640 Kbps
Video - high H264 at 1280x1080 4 Mbps 3.2 Mbps

14. 14#ATM15 |
Lync Aware WLAN
@ArubaNetworks

15. 15 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync Classification Methods
• Heuristics
• SDN API

16. 16 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync Classification using Heuristics
• Leverages DPI to identify & prioritize
real time voice and video traffic
• Ideal for Lync online deployments
• On-Prem deployments without SDN API can
leverage heuristics
• AirWave aggregates network wide
data for visibility
Lync

17. 17 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync Classification using SDN API
• Lync server integrates with
mobility controller using SDN API
• Real time call info is shared with
mobility controller
• Controller leverages the info to
apply QoS
• Ideal for On-Prem Lync
deployments
• AirWave aggregates network
wide data for visibility
Lync

18. 18 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Call Details via SDN API
Lync
• CALL START
• Caller/callee, device, session, BW, time etc.
• PERIODIC INTERVALS
• Instantaneous Call quality
• CALL END
• Avg. call quality, time etc.

19. 19 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Heuristics
Lync API
AppRF/Bandwidth
Management
QoS with Aruba Mobility Controller
Lync
Tagged DSCP,
802.1P
Tagged DSCP,
802.1P
WMM
Tagged DSCP,
802.1P
WMM
Lync aware
scanning
Air time fairness
ClientMatch

20. 20#ATM15 |
Lync on Aruba Architecture
@ArubaNetworks

21. 21 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync SDN API for a Centralized Campus
Lync
SDN API
East Campus West Campus

22. 22 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync SDN API for a Distributed Campus
America EMEA APJ
Lync
LyncLync
Lync Cluster
Lync Cluster
Lync Cluster

23. 23 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Lync SDN API for a Branch
Lync
Store 1 Store 2 Store 3

24. 24#ATM15 |
UC Visualization on
AirWave
@ArubaNetworks

25. CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved25#ATM15 |
UC Visualization
• UCC Dashboard
• CDR
• Visual RF Integration
• Per-User Call Visibility

26. 26 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
UCC Dashboard

27. 27 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
Call Detail Records(CDR)

28. 28 CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved#ATM15 |
UCC Calls on Visual RF

29. 29#ATM15 |
Lessons Learned from
Aruba Lync Deployment
@ArubaNetworks

30. 30#ATM15 |
Demo
@ArubaNetworks

31. CONFIDENTIAL © Copyright 2015. Aruba Networks, Inc. All rights reserved31#ATM15 |
UC Visualization
• ASE
– Configuration wizards
• Aruba Dashboard walkthrough

32. THANK YOU
32#ATM15 | @ArubaNetworks