Lync & Its Impact on . edu Networks

1. Lync & Its Impact on .edu Networks Chris Stegh – Vice President of Strategy, Enabling Technologies Josh Moorman, Sr. Solutions Architect, Level 3 Communications

2. Agenda • Lync 2013 functionality • Its impact on the network • How to handle WiFi and Layer 2 • How to handle MAN/WAN and Layer 3 • Where and when to use SIP trunks • Financial Impacts and Models • Lync 2013 will improve mobility, productivity, student services, and profitability • But what will it do to your network?

3. Lync 2013 Functionality

4. What’s new in Lync 2013? Integration across Office apps Multiparty HD video & content sharing Modern, mobile and web clients Federation with Skype Communicate directly from within Office Single identity Shared contact card OneNote Share Video gallery HD video or high resolution photos of attendees H.264 SVC support Presenter controls to optimize for meeting type Participant selected views Single unified client experience across workloads Lync Windows 8 immersive experience optimized for touch Mobile client experiences designed for the device Lync Web App for browser access to meetings Communicate with anyone on Skype Presence Instant Messaging Peer-to-peer voice

5. Innovate: Recruiting and Admissions Skype in: H.S. Guidance Office Mall Kiosk Facebook Page • Become a leader in technology and recruiting outreach Lync on: Recruiters’ tablets Admissions Officers’ PCs Recruit

6. Innovate: Student Services • Allow students to learn, where and when they want

7. Innovate: Industry Relations • Host HD meetings and share apps across the Internet with donors on PCs, Macs, and tablets

8. Consolidate: Telephony Charges “2 SIP trunks replaced 1000s of Centrex Lines” “hard savings of $150,000 per year” “avoided $44,000 cost” “In addition to the hard savings of $150K/year, Lync reduces our maintenance to an hour a month compared to 2-4 hours a day with Cisco.” -Michael Kalm, CTO, Idaho Labor Department “We avoided a $44,000 endpoint cost of a Cisco solution” and “saves 40-60% on endpoint devices.” – Dan SmithSenior Director of IT, Marquette University • Charge back to Users reduced 43% per user, and Monthly OpEx for PSTN Connectivity reduced over 50% • - U of Cal @ San Francisco

9. Consolidate: Conferencing Infrastructure and Cost $444,000 cost savings per year Saved $83,000 over MeetingPlace “reduce by 50%” Forrester estimated a$444,000 cost savings per year on teleconferencing and web conferencingfor a 5,000 information worker organization. -– Forrester Consulting, "Total Economic Impact of Microsoft Lync Server 2010” • “Lync is providing much richer functionality than we had with Cisco Unified MeetingPlace Express” • Douglas Besse • CIO and EVP Global Supply Chain and Asian Operations, Creation Technologies “We believe we can reduce our expenses for hosted solutions more than 50% by moving conferences from our current solutions to Lync.” – Markus Frenk, Certified Internal Auditor, Herrenknecht Lync Online requires a separate service from a third-party provider for dial-in audio conferencing Lync Server (on-premises) provides native dial-in audio conferencing

10. Lync 2013 Functionality and its Impact on the Network

11. Expectations of the Mobile University • John takes an incoming call on his UC enabled smart phone at his desk and starts a discussion • John realizes he has a meeting coming up which will take 10 minutes to walk across the building • John just gets up and starts walking to his meeting while continuing on with his conversation. • When John gets to his meeting he ends his call and attends his scheduled meeting. Corpnet

12. Expectations of the Network Audio/Video Capacity Planning for Conferences http://technet.microsoft.com/en-us/library/jj688118.aspx

13. New model needed for Capacity Planning!Typical Video Bandwidth in Lync 2013 MultiView conference video calls: Typical screen real estate allows for tileswith resolution of 424x240 (clipped to square) Receive: average of 2.5 video streams Send: average of 1.6 video streams Data sharing reduces screen real estate for video in most calls, results in small video resolution of 320x180

14. How Tight are the Tolerances?

15. iOS Characteristics over WiFi • iPad 3 • Battery drain time from 100% to 0%; • IM + Appsharing (Conf) : up to 9 hours • IM + Appsharing + Video (conf) : up to 6 hours and 30 minutes • Bandwidth Usage • IM + Appsharing : 766 MB in 9 hours = 189 kilobit/sec average • IM + Appsharing + Video : 2386 MB in 6 hours 40 minutes = 795 kilobit / sec average • iPhone 4 • Battery drain time from 100% to 0%; • IM + Audio (P2P) : up to 8 hours and 30 minutes • IM + Video (Conf): up to 3 hours • FaceTime on iPhone: up to 3 hours • Bandwidth Usage • IM + Video (conf): 400 kilobit / sec average

16. Campus Wi-Fi Recommendations Enterprise WLAN controller with thin enterprise grade APs or standalone APs Deploy 802.11n APs Implement WPA2 in Enterprise Mode Deploy APs featuring dual (concurrent) 2.4 GHz and 5 GHz operation with 3x3 configuration and 1 Gbps backhaul Design for seamless coverage and sufficient AP density. Deploy applicable AP density for required coverage and capacity but keep signal levels between -45dbm to -65dbm and SNR better then 30db (40db preferred) Implement fast transition support Plan for overlapping AP coverage (redundancy) and load balancing Design for capacity based on # of clients in coverage area, with multiple APs in large conference rooms Implement QoS/WMM with EF queue for WMM Voice Enable WMM on APs for QoS. Enable QoS on Lync servers and clients Enable power saving mechanisms - recommended DTIM = 2 for voice

17. Home Wi-Fi Recommendations Upgrade 11b and 11g routers to 11n Evaluate “Default” channel on 2.4 GHz – most Wi-Fi routers default to “6” Upgrade Wi-Fi routers supporting concurrent dual band with 2x2:2 configuration 11n 2.4 GHz band limit to 20 MHz channels “Move” dual band devices to 5 GHz (unless there are range limitations) Source of RF interference in 2.4 GHz Neighbor APs on the same channel Bluetooth devices Game consoles (wireless controllers) Cordless phones Avoid wireless range extenders (if possible) Implement application (port/protocol) based QoS for real-time media on Wi-Fi router

18. Level 3

19. Scalable PSTN Connectivity For R&E Josh Moormann Sr. Solutions Architect

20. Who We ServeResearch and Education Community Representative Customers • Doctoral and Research Universities • MIT, Harvard, Penn State, Oregon • Regional Optical Networks • NYSERNet, LEARN, CENIC • National R&E Networks • Internet2, NLR, ESnet • Research Laboratories • NREL, PNNL • The largest institutions in the R&E community rely on Level 3 for their network requirements including: • 4 of the 5 largest Research and Education networks in North America • Carrying traffic for 19 of the top 25 doctoral and research universities in the U.S. Internet2 and Level 3 to Provide Unprecedented Amount of Network Capacity to Research and Educational Institutions – Level 3 Press Release, April 14, 2011

21. Level 3 Enterprise Voice Portfolio Move Your Voice to Level 3 Today and Prepare for Tomorrow *Advanced features include: Intelligent Routing, Transfers, IVR (DTMF/Speech), Network Recording, Network Queuing

22. Business Continuity and Disaster Recovery Beyond Inbound Redirect Feature Server #1 Feature Server #2 • Equipment Diversity • All deployments pair to Level 3 primary and secondary feature servers and session border controllers deployed in geographically diverse, redundant server clusters. • You have the option to support IP PBX backup and diversity as well. • Network Diversity • You can choose network diversity levels and configurations appropriate for your business. • It supports automatic re-route for failover options. • Business Continuity Failover • From the web portal you may configure failover at the individual telephone number level or at the trunk level to alternative trunk groups or specific telephone numbers. Level 3 SIP Core Enterprise Softswitch SBC #1 SBC #2 Managed Customer Router Managed Customer Router Customer IP PBX 1 Customer IP PBX 2 Representative Remote TDM Office Data Center 1 Data Center 2

23. What to look for: Built on IPBetter Service Delivery and Management on a Single, Purpose Built Network • No dependency on TDM network elements to manage traffic across core network. • Fewer devices to provision and “end-to-end” call visibility speeds trouble diagnosis and resolution. Level 3 Architecture (End to End SIP) Typical Competitor Architecture (SIP bolted on to TDM) Customer WAN Customer WAN • Hybrid TDM-SIP solution require many internal parties: • Forces ‘certified’ solutions to ensure all parties can support • Delays in trouble tickets due to hand-off from regulated and un-regulated entities • Limited support of next generation solutions such as video/SMS/etc. SBC SBC 100 Percent SIP solution owned and operated by Level 3 IP IP IP Voice Network Local and LD TDM/SIP all on single network App Server App Server Voice Router Voice Router TDM Local and LD TDM Switches VoIP Gateway PSTN Tandem End Office End Office End Office PSTN Tandem End Office End Office End Office

24. Level 3 & Nomadic E-911 for Microsoft Lync • Unique* solution for enterprises’ premise-based, dedicated Lync UC deployments • Identifies VoIP caller’s physical location to the appropriate emergency responders • Single-vendor solution for SIP Voice Complete and Nomadic E-911 • Easier implementation process • Streamlined service management • Control component costs associated with a deployment

25. What To Look For In a “Lync Optimized” voice provider • Footprint and quality of voice network architecture • Local phone number and 911 connectivity • Service built on an all IP network • Quality portal for self service (ex: call routing controls) • Experience in the market (ex: number porting scale/best practices) • A carrier with a deep bench of SIP expertise • Commercial availability • An ongoing co-development relationship with Microsoft

26. QoS Techniques – Layer 3 QoS for Audio – DSCP 46 QoS for Video – DSCP 34 QoS for App Sharing – DSCP 24

27. Call Admission Control Techniques Permit / Deny video between subnets Permit / Deny multiple video streams

28. QoSMonitoring Techniques Lync Monitoring Server Capabilities In Lync 2013 the Monitoring Server role is co-located with a Front End

29. Next Steps Next Steps Understand business drivers and functionality desires Review infrastructure and identify any gaps Create Reference Architecture Define Project Phases & Plan Provide Bill of Materials Contact cstegh@enablingtechcorp.com for your complementary initial assessment Planning and Design Session

30. Thank you!