Spotlight On Gigabit Wireless Getting Your Arms Around the Future Robert Wardin Mobility Solution Architect Wi-Fi CDW.com/wifi 800.800.4239
Networking Data Explosion Business Network traffic doubling in five years BY 2018 most traffic (57%) comes from devices other than PCs Global IP traffic business and consumer will reach 1.6ZB
Networking Becomes Wireless Order of magnitude wireless increase by 2018 Blame BYOD average 3 devices per user in 2014 M2M connections to hit 7B+ by 2018 Over 20 billion network connections worldwide Wi-Fi will carry half of all the world s network traffic within five years
Unified Access/ Mobility Trends Autonomous Access Points Mobility Mobility BYOD, 3SS 802.11n, Unified Policy & Management, Cloud Controller Virtual Components, Wave 1 802.11ac, App Visibility & Control Unified Access Wave 2 802.11ac, HotSpot 2.0, VDI / VXI, Analytics & Intelligence Increasing scale of users, devices and network components Controller and Coordinated Access Points 1SS and 2 SS 802.11n with Spectrum Intelligence Unified Access Pervasive IPv6, Next Generation Cloud Services Mobility 1997 15 Years 2012 3 Years 2015
802.11ac: Trend Leaders First clients already entering the market MacBook Air, Samsung Mega, HTC One Fast growth Manufacturers like Apple will release 802.11ac in future products, other manufacturers will follow
802.11ac: Expected 11ac Client Throughput 1 stream (80MHz) is 433Mbps 2 stream (80MHz) is 866Mbps 3 stream (80MHz) is 1300Mbps Using the 802.11ac Performance 802.11n: 450 Mbps Table, let s drop it to ~70% MAC efficiency * Assuming ~70% MAC efficiency *, what s the real expected throughput? Tablets from 460Mbps * High-end notebooks from +680Mbps * Refer to chart for * 802.11ac Performance Table
802.11ac: A New Wi-Fi Standard Built for next-generation networks: More devices, exponential bandwidth growth, ratified in December 2013 Nearly 3x the speed of 802.11n Operates at 5GHz less interference and crowding than 2.4GHz (802.11 b/g/n) Capacity for more devices, HD video and bandwidth-intensive applications 802.11n: 450Mbps 802.11ac: 1,300Mbps
802.11ac: Significantly Increased Speed Speed increase comes from: Double the channel bandwidth: 80 MHz channels vs. 40 MHz in 802.11n More efficient modulation: 256 QAM vs. 64 QAM in 802.11n Net result: Nearly 3x faster than triple-stream 802.11n
802.11ac: Compatible with 802.11n 802.11ac compatibility with existing wireless networks: Works in 5GHz band Bbackward-compatible with 802.11a/n networks Does NOT operate in 2.4GHz 802.11b/g/n will continue to operate in that band Networks will need to support: 2.4GHz band: 802.11b/g/n 5GHz band: 802.11ac + 802.11a/n Wireless networks will need to adapt RF settings for optimal capacity
802.11ac: Compatible with 802.11n 802.11n 802.11ac Band 2.4GHz and 5.0GHz 5.0GHz only 6900 6900 8 Spatial Streams PHY Rate 65 Mbps 600 Mbps 290 Mbps 6.9 Gbps MAC Throughput 45 Mbps 420 Mbps 194 Mbps 4.8 Gbps Spatial Streams 4 8 Modulation 64 QAM 256 QAM 600 1300 870 3500* 1730* 3 Spatial Streams Channel Width 20 or 40 MHz 20, 40, 80, *80+80, 160 MHz 450 300 Minimum 290 290 1 Spatial Streams 2 11 54 24 65 Gigabit Ethernet Uplink 2 Gigabit Ethernet Uplinks 802.11 802.11b 802.11a/g 802.11n 802.11ac Wave1 802.11ac Wave2 1997 1999 2003 2007 2013 2014 * Assuming 160 MHz is available and suitable
802.11ac Feature Wave 1 2013 Wave 2 2014/2015 Features still in discussion PHY Rate 1.3 Gbps 1.3 Gbps 1.73 Gbps 2.6 Gbps 3.5 Gbps # of Spatial Streams 3 3 4 3 4 Modulation 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM Channel Width 20, 40, 80 MHz 20, 40, 80 MHz 20, 40, 80 MHz 20, 40, 80, 80+80, 160 MHz 20, 40, 80, 80+80, 160 MHz MIMO Single User Multi User Multi User Multi User Multi User 802.11 protocol support a, n, ac a, n, ac a, n, ac a, n, ac a, n, ac Ethernet Uplink GbE GbE, mgig and 10GbE
802.11ac Checklist: q Switchpower: 802.3at PoE+ q Pull the second CAT6 cable for future modules to save on cost on labor q Switching uplinks, prepare for 10 GIG connections from edge to distribution/core q Controller code 7.6 MR2 or higher q Remove legacy access points for better performance q Retire those B clients and turn off that rate! q Perform a wireless assessment best practice
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