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BRKEWN-2809.Pdf The Final Fails; The 6 on WiFi 6 How not to fail in WiFi – especially not on 6 Rush Johnson @Rush Steven Heinsius @Steven_Heinsius BRKEWN-2809 Cisco Webex Teams Questions? Use Cisco Webex Teams to chat with the speaker after the session How 1 Find this session in the Cisco Events Mobile App 2 Click “Join the Discussion” 3 Install Webex Teams or go directly to the team space 4 Enter messages/questions in the team space BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 3 Agenda • Introduction • What is WiFi 6 • WiFi 6 vs 5G • Physics, Economics & Human Behavior • Why is WiFi 6 better than WiFi 5 You don’t know what you have • Fails Fail 1 Fail 2 Fail 3 Until it’s gone… Fail 4 Fail 5 Fail 6 • Conclusion BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 4 Introduction About Steven…. @Steven_Heinsius 3 Years as an End User 5 Years as a Partner 6 Years as a Distributor 10 Years at Cisco 14 Years Instructor › Dad › Scuba diving › Runner › Snow boarding › Cook › Singer › Mountain biking › WiFi enthusiast BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 6 About Rush… @Rush • Electrical Engineering background – Virginia Tech • FCC Licensed since Age 14 • Self Proclaimed Radio/Antenna Geek • 35 years in Networking • 23 years building start ups • 12 years at Cisco Husband & Father of 3 sons & 1 daughter Lifelong Learner / Experimenter / Maker Lover of the Outdoors Native North Carolinian The Shortwave Antenna Farm at W4QA In North Carolina BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 7 How it all began… © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public There’s Ways to Fail • Learn how NOT to #Fail • It will be educational • It will be interactive • It will be fun “ I don’t care how you remember it, as long as you remember it” Steven Heinsius BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 9 Applicable to WiFi 6? Contact me for the Hand Out @Steven_Heinsius BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 10 Fail Forget those Channels #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 11 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Fail Incorrect Usage of Channels #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 13 Simple Rule Lead with a Channel Plan BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 14 Fail Maximum Power! #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 15 I use Maximum Power because… ✓ I only have 1 Access Point ✓ I need less Access Points ✓ I’m designing for Coverage ✓ My Site survey tool says ‘all green’ ✓ It’s the default… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 16 Fail Putting your AP’s on Maximum Power #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 18 Simple Rule Too much power isn’t good… for anyone… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 19 Fail 2.4 GHz is still the most important #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 20 2.4 GHz is still the most important Plain and simple… “NO" © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Fail Only designing for 2.4 is NOT how to do it… #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 22 Simple Rule Start with 5 GHz on the Test, and let RRM and FRA do the rest BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 23 Fail Placements #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 24 Placements. Really? Source: www.bad-fi.com Does it matter? BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 25 Fail Placing your Access Points… wrong… #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 26 Well done! BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 27 Not so well done… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 28 Not so well done… Source: www.bad-fi.com BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 29 Antennas, not like this… Source: www.bad-fi.com BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 30 Placement & Positioning best practices ✓ AP Horizontal (vertical Polarization) ✓ Below obstructions ✓ Minimal one meter (3ft) away from obstructions (Fresnel zone) ✓ The correct antennae, only 1 type of antenna ✓ Access Points minimal three meter (10ft) away from each other ✓ Not too high (after 4 meter (14ft) high special implementations) ✓ Don’t put behind a metal cage ✓ Use Outdoor AP’s for Outdoor Coverage… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 31 Simple Rule Like in Real Estate… Location, location, location! BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 32 Fail I am secure About Encryption & Authentication #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 33 2016 48,46% Source: wigle.net 2019 Fail Not enough attention for Security… #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 36 Username: Admin Password: Admin BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 37 Security best practices ✓ WPA2 is the bare minimum (with CCMP. Don’t use TKIP) ✓ WPA2 Personal (PSK) is for… personal ✓ WPA2 Enterprise (802.1X) for businesses ✓ WPA3 more and more supported and new default ✓ Use Role Based Access (RBA) with for instance ISE. ✓ Use a Wireless Intrusion Preventions (wIPS) solution ✓ Use VPN on Public Wireless Connections BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 38 Simple Rule Security is a Process, not a Product BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 39 Fail Hype versus Reality #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 40 Expectations versus Reality… But in reality... BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 41 Or BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 42 BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 43 Fail We want those big shiny numbers… but how real is it? #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 44 Wave 2 is here… Wave 2 is about: 160 MHz wide channels > 4 Spatial Streams Multi-User-MIMO (MU-MIMO) © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public But now… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 46 802.11ax 2.4 & 5 GHz Mu-MiMo, Upstream & Downstream Simultaneous Data. High Density environments use ~10Gig, OFDMA. BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 47 802.11ax BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 48 Simple Rule WaveWiFi 6 2is is nice, nice, but but the the Magic is in the Chipset BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 49 Fail There’s no Site Survey… or there’s no Good Site Survey #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 50 Make sure you know And make sure what you see… you survey everywhere… Cause not everything is what it I mean.. seems… Everywhere! BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 51 BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 52 Simple Rule No Survey – No WiFi BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 53 Fail Rip ‘n Replace… Like 4 Like #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 54 You decide to upgrade… Well that’s not a fail… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 55 1142’s are not the same as 2802’s And a 2802e is something different than a 2802i 9120 is a lot different from a 2602… BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 56 Simple Rule Survey for the Access Points you will install BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 57 Fail BYOA #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 58 Someone… © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public Simple Rule a Rogue AP should never have IP BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 60 Fail Supporting legacy devices… #7WTF BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 61 BRKEWN-2809 © 2020 Cisco and/or its affiliates. All rights reserved. Cisco Public 62 Supporting clients… • What type of Clients? • What are the capabilities of these clients? • What applications? – and the requirements? • What is the required Capacity? BRKEWN-2809 © 2020 Cisco and/or its affiliates.
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