Clear To Send: Wireless Network Engineering

Inside of Google’s in-house incubator, Area 120, is the birth of Orion WiFi. A new way for network operators to offer their Wi-Fi to carriers and generate revenue. In this episode, we have two guests from Google: * Raj Gajwani* Rich Mazzola Orion WiFi lets businesses such as public venues sell their Wi-Fi capacity to cellular carriers. The types of venues being targeted are malls, stadiums, and other public spaces. It works with enterprise wireless hardware from Cisco, Juniper/Mist, Meraki, Ruckus, and more. The other purpose of Orion WiFi is to simplify the experience for users when roaming from cellular to the Wi-Fi network on-premises. It’s a seamless experience for the user and they may not even realize they’ve switched to the local Wi-Fi network. Yes, it does sound familiar. It leverages Passpoint technology. Specifically, Orion WiFi is part of OpenRoaming. The carrier will offload data/voice communications to the Wi-Fi network. It’s not complicated to set up. In fact, it’s a low barrier to entry and doesn’t cost anything extra. You’ll need to be able to set up RADSEC from your infrastructure to Google Orion’s. The credentials used in order to use Wi-Fi offload will be from the carrier. Configuring RADSEC isn’t complicated either. Google has already prepared the deployment guides for various Wi-Fi systems. This is really meant to be nearly zero touch, fast and seamless. It’s standards-based and as long as the mobile devices support Passpoint and the carrier has an agreement with Google, it’s a simple setup. It removes the network operator from negotiating any agreements with the carriers. As long as the carrier is set up with Google Orion WiFi, the network operator will benefit. How does revenue work? The carrier is who pays to make a choice of doing Wi-Fi offloading to the Wi-Fi network. Google makes their revenue by taking a percentage of the revenue generated from the carriers offloading to the venue’s Wi-Fi network.

In this episode, we’re bringing on some special guests from Juniper Networks. We’re going to discuss the integration of Juniper Networks switches into the Mist dashboard. Our special guests are: * Sujit Ghosh* Ahbi Shamsundar* Jussi Kiviniemi Our agenda for this episode is to get a look behind the scenes of integrating other platforms, such as switching, to the Mist dashboard. We get to know what the acquisition was like when Mist joined Juniper. It obviously meant incorporating the Mist technology with Juniper. It fit in well with Juniper’s AI initiative but what was it like for them to understand how Mist was doing Wi-Fi today and what can Mist bring to the Juniper portfolio. The switching team at Juniper would have to marry some features being utilized in Mist’s access points, such as management. But with Juniper already embracing APIs, it didn’t seem too difficult. Sujit and Ahbi give their perspective of working with the Juniper teams. Where they both ended up was with Wired Assurance. It was the first steps of getting telemetry data from Juniper into the Mist dashboard. They had to start somewhere, and that’s where Sujit mentions tackling the low hanging fruit, easy wins, and features we need. The next step is where the game changes for many people. Ahbi discusses building Zero Touch Provisioning into Juniper switches. There’s now a way to deploy switching and Wi-Fi quickly and efficiently through the use of templates from the Mist dashboard. Looking into the future, there’s no doubt we may see future integration of other platforms such as routing and security. I think it’s a matter of time.

In this episode François talks about a recent project he worked on. He was asked to assess a couple of Wi-Fi environments for the use of Automated Guided Vehicles (AGVs) in manufacturing environments. Context * Wi-Fi assessment for use of automated vehicles in manufacturing environments* Make sure that the AGV will have a stable and reliable connection to the Wi-Fi while operating along their path Specificities * Automated vehicles might use specific hardware to connect to the Wi-Fi network* This hardware might be located very close to the ground* Automated vehicles have defined path programmed* Wi-Fi configurations gotchas* Wireless bridge* Lost of connection when the bridge connects to the Wi-Fi network* Review DHCP and bridge settings if multiples devices are connected behind the bridge* If static IPs are used, the passive client feature enabled on Cisco WLC* What is the AGV carrying and how it is going to affect the signal Hardware used for the project: * HPE Aruba 501 Wireless Client Bridge: https://www.arubanetworks.com/products/networking/access-points/501-wireless-client-bridge/* MP Antenna: https://www.mpantenna.com/product/wifi-antenna-08-ant-0944/  MP Antenna Pattern

In this week’s episode, we talk about the future of Wi-Fi following up on the publication of the following document from the IEEE: Current Status and Directions of IEEE 802.11be, the Future Wi-Fi 7 (https://ieeexplore.ieee.org/document/9090146) The authors of this document are: Evgeny Khorov, Ilya Levitsky and Ian F. Akyildiz IEEE 802.11be has been named EHT (Extremely High Throughput) by the IEEE. Here are the key features we could expect from it: * 4096 QAM* 320 MHz wide channels* MU-MIMO-16 spatial stream* Time-sensitive networking* Multi-link operation* Implicit sounding* Distributed MU-MIMO Here is the expected timeline for the development of the new amendment. First draft expected to be released in May 2021. The first release of 802.11be may include the following features: * 320Mhz wide channel* 4K-QAM* Obvious OFDMA improvements* Multi-Link This table summarized the main innovation of 802.11be and categorize them: On top of listening to this episode, we would recommend reading over the document. You will learn something new for sure! Enjoy!

We had the pleasure to have Kilian Löser on the show to talk about Wi-Fi in manufacturing envrionments. We took the opportunity to talk about what is coming up and how these environments are evolving with Industry 4.0. Feel free to follow Kilian on LinkedIn (https://www.linkedin.com/in/loeserkilian/) and Twitter(@KilianLoeser). In this episode, we’ve talk about the following topics: * Situation today in warehouses and manufacturing environments* Different wireless use cases we can find today* Different problems around Wi-Fi networks in these environments* Definition of what Industry 4.0 means* The need for multiple wireless protocols* The proprietary wireless protocol from Siemens: iPCF-MC* New set of devices expected to be used in these environments (AGV, AMR)* Wi-Fi 6 in the manufacturing environment* The factory of the future (use cases) You can download Kilian’s Whitepaper on Wi-Fi 6 here: https://new.siemens.com/global/en/products/automation/industrial-communication/industrial-wireless-lan.html#Whitepaper Resources * WLPC Prague 2019 Presentation from Maksim Getman: Steel Factory Wi-Fi | Maksim Getman | WLPC Prague 2019* WLPC Prague 2019 Presentation from Yosef Graziano: Wi-Fi for Challenging Environments | Yosef Graziano | WLPC Prague 2019* Video, explanation of the iPCF-MC protocol: https://assets.new.siemens.com/siemens/assets/api/uuid:4bdccad2-362a-41db-b3ef-8c07b884a5db/version:1574068623/ipcf-mc-en.mp4* Video, explanation of the iPCF protocol: https://assets.new.siemens.com/siemens/assets/api/uuid:4513b9f0-37d0-4a32-aa9e-e0e64549abdf/version:1574068635/quick-roaming-rcoax-with-ipcf-en.mp4* The factory of the Future (Factory 56 Daimler): https://www.youtube.com/watch?reload=9&v=UdDvDKC8FVM* The factory of the Future (Porsche Taycan): https://new.siemens.com/global/en/markets/automotive-manufacturing/references/porsche.html* Whitepaper on Wi-Fi 6 by Siemens (Kilian): https://new.siemens.com/global/en/products/automation/industrial-communication/industrial-wireless-lan.html#Whitepaper* Details on Siemens AGV SIMOVE concept: https://assets.new.siemens.com/siemens/assets/public.1560752109.542c7044-05c4-4af2-8c9a-e77f85520cf6.simove-agv-flyer-v3.pdf

Welcome to the coffee hour ☕️ This is a casual Clear to Send (CTS) conversation over coffee where we talk about different topics. In this hour, we run through different topics from recent evThis is a casual Clear to Send (CTS) conversation over coffee where we talk about different topics. In this hour, we present the upcoming Mobility Field Day 5, talk about a fun Python library called pySerial and give you an update on the podcast. Subscribe to our YouTube channel to see more videos from us. Topics * Mobility Field Day 5* Presentation of the event* Presentation of the delegates* Presentation of the vendors* Our predictions* Python library: pySerial* Presentation of pySerial* Showcase of an example on how to use it* Clear To Send update* Courses* Practical Guide for Wi-Fi Site Surveys* New course coming: Ignite CWNA* Podcast numbers are great this months Link & Ressources * Mobility Field Day 5: https://techfieldday.com/event/mfd5/* pySerial: https://pyserial.readthedocs.io* SemFio’s blog on pySerial: https://www.semfionetworks.com/blog/establish-a-console-connection-within-a-python-script-with-pyserial* pySerial example: https://github.com/francoisverges/semfio-cisco/blob/master/pyserial-example/show-ap-summary.py* More pySerial scripts: https://github.com/francoisverges/semfio-cisco/blob/master/Setup-APoS-EWC/setup-APoS-EWC.py* CTS Courses: https://courses.cleartosend.net/* A Practical Guide to Site Survey: https://courses.cleartosend.net/p/a-practical-guide-to-wi-fi-site-surveys* Ignite CWNA Course Interest: https://cwnatraining.com What did you think of our live demo near the end of the Coffee Hour? Let us know in the comments below. Thank you for your continuous support. If you want to keep on supporting us, here are your options: * Purchase a course from courses.cleartosend.net* Buy us a kofi: https://ko-fi.com/cleartosend

In this episode, we welcome’s Tiago Rodrigues, CEO of the Wireless Broadband Alliance, and Matt MacPherson, Wireless CTO at Cisco to talk about OpenRoaming. The Wireless Broadband Alliance recently took over the ownership and management of OpenRoaming from Cisco. We had a great time and great discussion with Tiago and Matt and hope that you like it! One hour was definitely not enough time to talk about OpenRoaming, however, in this episode, we talked about the following topics: * OpenRoaming, giving a definition to what it is* Why the WBA decided to take over* Why Cisco decided to hand it over to the WBA* The current momentum behind OpenRoaming when it comes to vendors, manufacturers and identity providers* Components of OpenRoaming* How OpenRoaming will benefit big and small businesses* The role of the brokers We only touched the surface on some of the components of OpenRoaming. We will follow up with other episodes to dive deeper into some the these components. As we start to implement in our networks, we will also be able to follow up with episodes talking about how it works technically speaking. Thank you again Tiago and Matt for your time! Resources * Official OpenRoaming website: http://www.openroaming.org* OpenRoaming FAQ: https://wballiance.com/openroaming/faq/* Integrate Eduroam with OpenRoaming: https://wiki.geant.org/display/H2eduroam/Roaming+with+third+parties+based+on+Passpoint* Press release from WBA: https://wballiance.com/wba-assumes-control-of-openroaming/* Press release from WBA:https://wballiance.com/wba-openroaming-opens-the-door-to-create-one-global-wi-fi-network/* Use Case OpenRoaming: https://newsroom.cisco.com/press-release-content?type=webcontent&articleId=2085155* Use Case OpenRoaminghttps://www.reuters.com/article/us-britain-wifi/londons-canary-wharf-pioneers-seamless-wi-fi-roaming-idUSKBN2425D1* Previous episode on OpenRoaming with Jérôme Henry: https://www.cleartosend.net/cisco-openroaming/* Previous episode on the WBA with Tiago Rodrigues and Gabriel Desjardins: https://www.cleartosend.net/cts-219-wireless-broadband-alliance-with-tiago-rodrigues-and-gabriel-desjardins/* Presentation: Understanding OpenRoaming and the Device Ecosystem Project – Jérôme Henry: https://www.youtube.com/watch?v=BJxOChcOmyI&t=314s* Presentation: Cisco OpenRoaming to Better Bridge Between Mobile and Wi Fi Networks – Matt MacPherson: https://www.youtube.com/watch?v=rW5I6csmF1o

In this episode, we are providing an introduction to WPA3. We also show how to configure it on a Cisco controller as well as how you could validate it by looking at Wi-Fi frames: Introduction WPA3 is the improved version of Wi-Fi security. It updates WPA2 which is commonly used everywhere in Wi-Fi networks.  Why the need for WPA3? * KRACK Attack* https://www.cleartosend.net/cts-094-sealing-krack-attack/* WPA2-PSK is subject to dictionary attacks WPA3 brings the following: * Increased crypto strength* Dumps legacy protocols* Mandates Protected Management Frames (PMF)* https://www.cleartosend.net/802-11w-management-frame-protection/* Mandatory for Wi-Fi 6 (more and more devices will support WPA3) There are two versions of WPA3 which are similarly named from WPA2: * WPA3-Personal* Pre-shared Key* Simultaneous Authentication of Equals (SAE) is used* WPA3-Enterprise* Builds upon WPA2-Enterprise* Enhanced encryption* WPA3-Enterprise also offers an optional mode using 192-bit minimum-strength security protocols and cryptographic tools to better protect sensitive data:* Authenticated encryption: 256-bit Galois/Counter Mode Protocol (GCMP-256)* Key derivation and confirmation: 384-bit Hashed Message Authentication Mode (HMAC) with Secure Hash Algorithm (HMAC-SHA384)* Key establishment and authentication: Elliptic Curve Diffie-Hellman (ECDH) exchange and Elliptic Curve Digital Signature Algorithm (ECDSA) using a 384-bit elliptic curve* Robust management frame protection: 256-bit Broadcast/Multicast Integrity Protocol Galois Message Authentication Code (BIP-GMAC-256) WPA3 Modes There are a few modes WPA3 can be implemented * WPA3-Personal only* WPA3-Personal transition* WPA3-Enterprise only* WPA3-Enterprise transition* WPA3-Enterprise 192-bit* WPA3 Fast BSS Transition* WPA3-Enterprise Server Certificate Validation WPA3-Personal * Mandatory* AP enables at least AKM suite selector of 00-0F-AC:8 (SAE Authentication)* STA allows at least AKM 00-0F-AC:8 for association* AP and STA must use PMF* AP and STA sets MFPC and MFPR to 1* Must use only DH groups 15-21, group 19* Requirement* AP and STA does not enable AKM 00-0F-AC:2 (WPA2-PSK) and 00-0F-AC:6 (PSK using SHA-256)* AP doesn’t enable WPA on same BSS with WPA3-Personal* No WEP and TKIP on same BSS as WPA3-Personal* STA will use SAE when AP supports SAE and PSK WPA3-Personal Transition * Mandatory* AP enables at least AKM 00-0F-AC:2 (WPA2-PSK) and 00-0F-AC:8 (WPA3-Personal)* STA allows at least AKM 00-0F-AC:2 (WPA2-PSK) and 00-0F-AC:8* AP sets MFPC to 1, MFPR to 0* STA sets MFPC to 1, MFPR to 0* AP rejects association for SAE if PMF is not negotiated* STA negotiates PMF when associating to AP using SAE* Recommended* AP enables AKM 00-0F-AC:6* STA allows 00-0F-AC:6* Requirement* AP doesn’t enable WPA on same BSS with WPA3-Personal* No WEP and TKIP on same BSS as WPA3-Personal* STA will use SAE when AP supports SAE and PSK WPA3-Enterprise Only * PMF will be set to capable which is the MFPC bit set to 1 and MFPR bit set to 1 in the RSN Capabilities field* No WPA version 1 enabled on the same BSS on WPA3-Enterprise WPA3-Enterprise transition mode * WPA2-Enterprise and WPA3-Enterprise transition mode on same BSS, PMF will be set to capable which is the MFPC bit set to 1 and MFPR bit set to 0 in the RSN Capabili...

In this episode, we had the pleasure to have Sunalini Sankhavaram and Robert Boardman from Mist to talk about Contact Tracing. We have recorded this episode in the video format as well so we could demo the solution for you guys. (Thank you Rowell for spending a few hours editing the video!) Here is the video: Mist has been integrating location in their APs since the very first one they released. They are able to leverage BLE in order to provide location with a very good accuracy. They are also able to leverage Wi-Fi to provide location. However, location using Wi-Fi is usually not as accurate. In this episode, we have approached several topics related to contact tracing: * Concept of zones and occupancy (ability to know when too many people are present in a specific are)* How can we leverage contact tracing in the current context (people going back to work after COVID lockdown)* Proximity tracing* Journey mapping (ability to go back and know who was in contact with an infected person)* Technologies used to perform location tracing (BLE, Wi-Fi)* Privacy Here are couple of screenshots from our dashboards: Resources Here are a few links if you want to learn more about Mist and Contact Tracing: * Leveraging the AI-Driven Enterprise to Support Contact Tracing: https://www.mist.com/contact-tracing* Contact Tracing Over Wi-Fi from Packet6: https://www.packet6.com/contact-tracing-wifi/* Wi-Fi DevOps with Mist from SemFio Networks: https://www.semfionetworks.com/wi-fi-devops-mist.html

We go down memory lane and look back and our last site survey, how it went and what we could have done differently. We also look back at our early site surveys and how we did them wrong, what we wish we knew, and how we’ve changed since then. Before we dive into the podcast episode, we want to announce our first course, A Practical Guide to Wi-Fi Site Surveys. With our experience, we have developed a course on how to apply the theory of Wi-Fi into performing site surveys. There are many guides and tutorials giving you the theory of Wi-Fi but there isn’t a practical guide on how to take that knowledge and apply it to a project. In this episode, we tell our short story of when we first did site surveys. It’s been quite the journey for both of us. There are so many things that aren’t discussed in classes especially when it comes to the process of performing site surveys, communications with people, the exact equipment used, and more. While a site survey can be done differently there are some aspects to it that remain the same. There is a methodology to a site survey in obtaining the right information and producing a result with accuracy. There isn’t a set standard on how it is done and we acknowledge there is room for improvement. We sum up the experience and share it with you in this episode.

What is Wi-Fi Capacity Planning? In this episode, we discuss what Wi-Fi capacity is, how it can be done, and what are some of the “gotchas” when you are doing capacity planning. When it comes to Wi-Fi capacity planning, many rely on the built-in tools to help us determine how many access points (APs) are required to meet the capacity of a given area. A lot of planning goes into the study of the traffic being generated by the Wi-Fi clients and the APs. Clients have a varying degree of capabilities which much be considered, how many of those clients will be in an area, and what applications they will be using. Why do we do capacity planning studies Air time is our limited resource in Wi-Fi and we want to be sure that we are not going to saturate it with a poor Wi-Fi design. We do capacity planning to know how many radios we will need and we incorporate that information in our RF design with the proper equipment. Channel reuse will be critical as to not cause excessive co-channel interference. If our capacity requirements are high, it would mean we need to adjust the RF design so we can actually meet these high requirements in the real world. Some examples could be high-density open spaces with bandwidth-hungry clients. When do you do a capacity planning Different scenarios call for capacity planning such as working in Wi-Fi only open spaces, or carpeted environments. When we expect a lot of clients on the Wi-Fi network utilizing critical applications we also perform capacity planning. Sometimes it isn’t a high-density environment. It could be capacity-based because of the application usage with a specific number of clients. In reality, you will see that we tend to over-engineer our solution. The reality will usually have a lower utilization of Wi-Fi but we must talk to the stakeholders about expectations. Where capacity might not be needed is a warehouse. Most of the time that is coverage based with low bandwidth requirements. Gotchas When we do capacity planning they are just estimations. There are a lot of moving pieces and it could be hard to get very accurate. A lot of time must be taken to research the required capacity and include growth as well. How do you plan for capacity when you don’t know which devices will connect to the Wi-Fi network, such as a BYOD environment. That is very much a large guesstimate and can be based on the number of devices in a given area. Currently, it is difficult to do capacity planning with Wi-Fi 6. Will we need to do it? Maybe. Capacity planning needs to be made for areas of the same density. If you have different areas expecting different density of devices, you have to perform multiple capacity studies or have the design software do it for you. Maximum device capabilities are used when performing capacity planning. In the real world, devices might not always use these capabilities. Additionally, when using Ekahau, the capacity would be based on the number of devices specified at their max SLA. Tools * Capacity Planner from Revolution Wi-Fi (Andrew Von Nagy)* http://www.revolutionwifi.net/capacity-planner* Capacity planner within Ekahau Pro* Capacity planner within iBwave Wi-Fi* Educational tool – AirTime Calculator : https://gjermundraae...

This is the recording on the live episode we recorded part of the Pod-a-Thon organized by the WLA. The goal was to raise fund for the COVID-19 relief cause. In this episode, we talked about the behind the scene of the Clear To Send podcast. This includes talks related to the latest recordings we have made as well as answering questions from listeners. Enjoy this recording!

In this episode of WiFi Coffee Hour, Rowell and François go on a live stream to discuss the shift from in-person to virtual conferences. There’s no doubt the virtual conference will not live up to an in-person event. Some of you may have been planning to attend a conference for the first time only to find out it’s now online. Do you enjoy listening to CTS? Buy us a coffee ☕️kofiwidget2.init('Support the show!', '#ED702B', 'cleartosend');let kofiShortcode801Html = kofiwidget2.getHTML().replace('', '');document.writeln(kofiShortcode801Html); On the flip side, these events are free (for now). There’s going to be a learning curve for some of these events. Some presentations won’t be live. There will be prerecorded videos. Follow us on YouTube We won’t get the interaction of seeing people on that yearly basis. That’s the biggest downside, in my opinion. But we have to make the best of it during this pandemic. We continue to learn and we continue to have those same conversations but on the social platform. Other topics discussed in this live stream of WiFi Coffee Hour: * Modifying your shell* François’ pyMist scripts

In this episode, we have Ben Robson, RF Engineer, with us to explain how an antenna works. He went into great details on how the antenna works. It is probably the longest episode we have recorded so far! But it is well worth it! Thank you Ben for coming on the show to educate us! Enjoy. Inside of a patch directional antenna (14dBi gain) Example of S-11 Plots Links & Resources * VSWR / Return Loss Calculator – Electrical Engineering & Electronics Tools: https://www.allaboutcircuits.com/tools/vswr-return-loss-calculator/* Definition of S-Parameters: http://www.antenna-theory.com/definitions/sparameters.php* S11 Plots:* https://www.researchgate.net/profile/Aymen_Khaleel2/publication/276353525/figure/fig24/AS:294595561836552@1447248463416/S11-parameter-graph-for-single-patch-antenna.png* https://www.researchgate.net/profile/Jawad_Ali23/publication/311228399/figure/fig14/AS:434369224548366@1480573101877/Return-Loss-S11-Plot-of-Cellulose-based-Dual-Band-24-GHz-and-57GHz-Antenna.png* Example of Cisco Antenna Specs: https://www.cisco.com/c/en/us/td/docs/wireless/antenna/installation/guide/ant2513p4mn.html* Example of Ventev Antenna Specs: https://ventevinfra.com/wp-content/uploads/246112_2.4_5-GHz-13dBi-Wi-Fi-Warehouse-Antenna-with-4-N-Style-Jack-Connectors.pdf* Antenna Theory: http://www.antenna-theory.com/* MatLab – software to design antenna: https://www.mathworks.com/products/matlab.html* Understanding Cable and Antenna Analysis: https://www.anritsu.com/en-US/test-measurement/solutions/en-us/understanding-cable-and-antenna-analysis* Cable Attenuation Calculator: https://www.timesmicrowave.com/calculator/* Conversion Calculators: https://www.pasternack.com/t-rf-microwave-calculators-and-conversions.aspx

In this episode, we were delighted to have Kevin Robinson, Senior Vice President of Marketing at the Wi-Fi Alliance, with us. We talked about the Wi-Fi Alliance as well as the upcoming Wi-Fi 6e certification program. Enjoy! Agenda * Introducing Kevin Robinson, Senior VP of Marketing* Overview of the organization* Who is the Wi-Fi Alliance* Alliance, Members* Recap of the FCC announcement around 6 GHz* What does this mean for Wi-Fi Alliance* Wi-Fi 6E certification program* Discussion about generational naming scheme introduced by Wi-Fi Alliance and how it makes it easier for consumer to identify Wi-Fi generations* What is the status of the Wi-Fi 6E certification program now?* When will it be finalized?* Discussion around the testing and standardization of Wi-Fi client behaviours* Wi-Fi Vantage* Wi-Fi Agile Multiband Takeaways * Wi-Fi 6e certification is the extension of the Wi-Fi 6 certification for Wi-Fi use in the 6GHz frequency space* 6GHz is an amazing opportunity to start fresh (without having to support legacy technologies)* We will have additional requirements for the Wi-Fi 6e certification (such as higher level of security (WPA3))* Wi-Fi Vantage is a response to try to standardize client device behaviour* More and more of it (Agile Multiband) try to be included as mandatory for the Wi-Fi 6 and Wi-Fi 6e certifications Links & Resources * Wi-Fi Alliance brings Wi-Fi 6 into 6GHz: https://www.wi-fi.org/news-events/newsroom/wi-fi-alliance-brings-wi-fi-6-into-6-ghz* Wi-Fi Alliance delivers more value from Wi-Fi in 6GHz: https://www.wi-fi.org/news-events/newsroom/wi-fi-alliance-delivers-more-value-from-wi-fi-in-6-ghz* Wi-Fi Vantage certification program: https://www.wi-fi.org/discover-wi-fi/wi-fi-vantage* Wi-Fi Vantage Field Trial Highlights: https://www.wi-fi.org/download.php?file=/sites/default/files/private/Wi-Fi_CERTIFIED_Vantage_Field_Trial_Highlights.pdf* Wi-Fi Agile Multiband certification program: https://www.wi-fi.org/discover-wi-fi/wi-fi-agile-multiband* Wi-Fi Agile Multiband Specification: https://www.wi-fi.org/downloads-registered-guest/Wi-Fi_Agile_Multiband_Technical_Specification_v1.4.pdf/34975