Tri-band 60 GHz 11ad/WiGig, 11ac (5 GHz) and 11n (2.4 GHz) Dual-band 11n (2.4 and 5 GHz) Dual-band 11n (2.4 GHz) + 11ac (5GHz) Single-band 11n (2.4 GHz) Wi-Fi and WiGig Chipset Shipments surpass 2B in 2013 Proprietary | © Wi-Fi Alliance Source: ABI Research, November 2013 Proprietary | © Wi-Fi Alliance Source: ABI Research, November 2013 1 Network Bandwidth Requirements for Media Traffic Ref: Delivering Lync 2013 Real-Time Communications over Wi-Fi Property Conferencing Server Application Server Mediation Server Packet Type Starting Port Number of Ports Reserved AudioPortStart 49152 49152 49152 Application sharing 40803 8348 AudioPortCount 8348 8348 8348 Audio 49152 8348 VideoPortStart 57501 -- -- Video 57501 8034 VideoPortCount 8034 -- -- Totals -- 24730 ApplicationSharingPortStart 49152 -- -- ApplicationSharingPortCount 16383 -- -- Client Traffic Type DSCP Source IP Destination IP Protocols Source port range Destination port range Audio 46 Any Any TCP/UDP 49152:57500 Any Video 34 Any Any TCP/UDP 57501:65535 Any App Sharing 24 Any Any TCP/UDP 40803:49151 Any Client Traffic Type DSCP Source IP Destination IP Protocols Source port range Destination port range Audio 46 Any Any TCP/UDP Any 49152:57500 Video 34 Any Any TCP/UDP Any 57501:65535 App Sharing 24 Any Any TCP/UDP Any 40803:49151 False 5350 5350 5350 5350 Client Traffic Type Port Start Port Range Audio 50020 20 Video 58000 20 Application sharing 42000 20 File transfer 42020 20 Client Traffic Type DSCP Source IP Destination IP Protocols Source port range Destination port range Audio 46 Any Any TCP/UDP 50020:50039 Any Video 34 Any Any TCP/UDP 58000:58019 Any App Sharing 24 Any Any TCP/UDP 42000:42019 Any File Transfer 14 Any Any TCP/UDP 42020:42039 Any UCOIP Vendor Qualified Device Firmware Version Tested Aruba Networks, Inc. Mobility Controllers and AP-104/105/134/135 Access Points AOS 6.1.3.2 and higher Cisco Systems AIR-CT5508-K9 and AIR-CAP 3602E-A-K9, with SW 7.5.102.2 V01 Dell, Inc. PowerConnect W-Series Mobility Controllers and W-AP104/105/134/135 Access Points AOS 6.1.3.2 and higher HP MSM720/MSM760/MSM765 zl/MSM775 zl Wireless LAN Controllers and MSM430/MSM460/MSM466/MSM466-R and HP 425 Access Points 6.0.1.1 and higher Juniper Networks Wireless LAN Controllers, WLA532 Wireless LAN APs MSS 8.0 and higher Motorola Solutions NX 9510 (controller) and AP-7131 WiNG 5.5.0.0 http://www.microsoft.com/enus/download/details.aspx?id=36494 Most IT customers know they have Wi-Fi issues, but they do not know how to identify, fix and validate them! Behavior Ethernet Wi-Fi Impact on Lync Full wire rate Yes No Networks are often under designed for intended Lync load PHY data speeds Fixed, PtP Full Duplex Variable, Shared, Half Duplex One slow client can ruin Lync experience for all users on the AP Client integration Simple Complex Highly variable client device implementations lead to highly variable Lync experience Mobility Stationary Mobile Lync sessions often deteriorate when clients are distant from the AP or when they roam Installation Forgiving Critical Variable Lync experience depending upon physical location Wi-Fi networks rarely fail outright – they are mostly operational, but not optimal Most difficult situation to detect and fix Signal Strength Lync Application Performance Good signal strength does not guarantee good Lync performance Data Center Wireline Infrastructure Access Router WAN Wi-Fi Controller Components • • • • • • • • Access Points Clients Lync Client App Client Devices Wi-Fi access points Wi-Fi Controller Wireline Infrastructure WAN Access Data Center Lync Server Wi-Fi Assessment WAN Assessment Scalability Determine systems ability to support specific number of clients with acceptable Lync performance Stability Analyze the long-term stability of the Wi-Fi network over to ensure reliable operation over time Coverage Lync performance & RF coverage by physical location Lync performance by client devices: laptops, phones, tablets, etc. Discovery Phase Understand what network environment exists Understand user modalities Modeling Phase Determine Lync utilization per AP Traffic Simulation Using a Lync Traffic simulator, connect clients and apply real traffic to production network and monitor factors that affect the quality of Lync traffic: delay, jitter, and packet loss Report Analyze factors affecting quality and produce a full report with recommendations Table of Contents Summary of engagement Overall conclusions & recommendations Scalability results Sites 1-4 analysis: summary, coverage, stability  APs cannot support QoS at targeted scale  Enable QoS, upgrade AP, enable dual bands, reduce power  Scope rollout of Lync to match capacity  Degraded Lync experience during busy hour  Introduce QoS, add another AP  Clients roam unexpectedly during testing  Change client devices, disable ARM/RRM  One client has highly variable performance  Change roaming aggressiveness, enable QoS  Traffic looks good overall, but is degraded in some locations  Look at AP installation, wireline network, band preference Final Report Problem Scalability Stability Coverage Using Lync Without Network Changes Follow on Services for Network Upgrades Limit scale or services Reconfigure network Upgrade network capacity Must address Reconfigure network Upgrade network Reconfigure clients Change clients Limit usable coverage Upgrade network Reconfigure clients Change clients Partners can offer these as value added services; Ixia can be your partner. Step Supporting Material & Actions Contact Ixia Email testlync@ixiacom.com to get started Position Wi-Fi Assessment to customer Sales presentation & product brochures Ixia can assist with all aspects of Wi-Fi Assessment. Discovery Understand what network environment exists Asking the right questions Modeling Determine Lync utilization per AP Traffic Simulation Traffic simulator apply real traffic Reporting Analyze factors that affect quality, and produce a full report with recommendations dfrost@ixiacom.com dfrost@ixiacom.com (*) Look under Networking @ Infrastructure qualified for Microsoft Lync