200 episodes

A weekly podcast about wireless network engineering. Wireless topics on education, wireless design, tips, interviews with other wireless engineers, tech news about wireless, and the products we configure. A podcast for any wireless professional or enthusiast.

Clear To Send: Wireless Network Engineering Rowell Dionicio and François Vergès

    • News
    • 4.7 • 55 Ratings

A weekly podcast about wireless network engineering. Wireless topics on education, wireless design, tips, interviews with other wireless engineers, tech news about wireless, and the products we configure. A podcast for any wireless professional or enthusiast.

    CTS 262: Troubleshooting Common Wi-Fi Problems with RUCKUS

    CTS 262: Troubleshooting Common Wi-Fi Problems with RUCKUS

    In this episode, we are trying to assess how easy it is to troubleshoot common Wi-Fi problems using RUCKUS cloud. We want to give you an idea of what it would look like to perform troubleshooting from our point of view. We outline what we like and what we would want to see improved.







    We want to thank RUCKUS for sending us an R750 and giving us access to the cloud.







    Similar to our other episodes on the same topic, but with different vendors, we present three issues:







    * PSK issue: user entering the wrong password when connecting to a WPA2-Personal Wi-Fi network* 802.1X issue: RADIUS server not reachable* 802.1X issue: user entering wrong password when connecting to a PEAP[Ms-CHAPv2] Wi-Fi network







    We found that RUCKUS allows you to view details of your Wi-Fi network but it would require you to look through logs to identify any real problems.







    Not until you start using RUCKUS Analytics then do you see how easily the impact of an issue is along with clear language of what the problem is. Just check it out from the screenshot below.







    RUCKUS Analytics







    The RUCKUS Analytics feature is a premium subscription or service. It does speed up the identification of Wi-Fi issues. In addition to having analytics around Wi-Fi issues, RUCKUS has a virtual network assistant, called Melissa, that can be asked questions to help gather information for you and potentially solve issues faster. We found that there is still a lot of room for improvement.

    • 1 hr 5 min
    CTS 261: Troubleshoot Common Wi-Fi Issue with Mist

    CTS 261: Troubleshoot Common Wi-Fi Issue with Mist

    In this episode, we are trying to assess how easy it is to troubleshoot common Wi-Fi problems using the Mist solution. We want to give you an idea of what it would look like to perform troubleshooting from our point of view. We outline what we like and what we would want to see improved.







    SPONSOR















    This episode is sponsored by SemFio Networks, a Juniper Mist partner, founded by your co-host François Vergès. We specialize in building reliable Wi-Fi. SemFio Networks is a trusted Juniper Mist partner in Canada. One of the reasons we partnered with Mist is because we believe in the new technologies they are using, especially those that allow automation. We try to integrate automation in every project we work on today and we see significant gain in time and efficiency for our customers. Leveraging the Mist API, we have developed tools that help us to deliver easy to manage solutions and we make sure that the customer feels comfortable taking over when we are done. Feel free to book a session with me to talk about your Wi-Fi needs. I would be really excited to be working with you. It’s time to rely on your Wi-Fi to get things done.









    Book a session with François

















    Here are the problems we had generated:







    * PSK issue: user entering the wrong password when connecting to a WPA2-Personal Wi-Fi network* 802.1X issue: RADIUS server not reachable* 802.1X issue: user entering wrong password when connecting to a PEAP[Ms-CHAPv2] Wi-Fi network







    Enjoy the recording and let us know which Mist tool you like using while performing troubleshooting

    CTS 260: Troubleshoot Common Wi-Fi Problems with Meraki

    CTS 260: Troubleshoot Common Wi-Fi Problems with Meraki

    In this episode, we are trying to assess how easy it is to troubleshoot common Wi-Fi problems using the Meraki solution. We want to give you an idea of what it would look like to perform troubleshooting from our point of view. We outline what we like and what we would want to see improved.







    SPONSOR















    This episode is sponsored by Packet6, a Meraki Partner, founded by your co-host, Rowell Dionicio. Start designing your Wi-Fi with Packet6. You need a reliable partner that has your best interests and won’t over-sell you on products and services you don’t need. At Packet6, you can work with Rowell directly to bounce ideas off of for your next Wi-Fi project and get a quote for Wi-Fi equipment. You don’t have it do it alone because no matter what your skill level is, whether you’re a novice or an expert, Packet6 is a good fit for most organizations. See for yourself at packet6.com. Get reliable, simple, and seamless Wi-Fi today from Packet6.







    Nowadays, we’re relying on cloud dashboards to rapidly identify issues with the network. Many vendors include this as a feature when using their dashboard. But how well are they at identifying issues? How quickly do they log the issues? This is something we will try to evaluate in a series of episodes with different vendors. It’s a big improvement from viewing raw logs or searching for a needle in a haystack.







    Meraki offers a feature called Meraki Wireless Health. It provides the network administrator with an overall view of the network. If you needed to view details of a specific client or AP, the Health feature displays any issues that could be happening over a given time period.







    Here are the problems we had generated:







    * DHCP issue: DHCP server not providing an IP address* PSK issue: user entering the wrong password when connecting to a WPA2-Personal Wi-Fi network* 802.1X issue: RADIUS server not reachable* 802.1X issue: user entering wrong password when connecting to a PEAP[Ms-CHAPv2] Wi-Fi network







    Enjoy the recording and let us know which Meraki tool you like using while performing troubleshooting

    • 1 hr 6 min
    CTS 259: Optimizing for Client Devices

    CTS 259: Optimizing for Client Devices

    Are we relying too much on proprietary tech to optimize Wi-Fi for client devices? Recently, Rowell had to optimize a wireless network which became this episode.







    What do we think about features like client load balancing? Can it work efficiently and how do client devices react to it? Is there a better way to load balancing clients across access points? Ultimately, the client device decides where it wants to join, right? Maybe 802.11k/v can help with transitioning client devices more smoothly. We would think so but sometimes client devices don’t leverage 802.11k/v properly.























    Do you turn on all DFS channels? If a client device supports the channel, why not? But what about which AP is operating on which channel within DFS. That’s going to be important when designing a network that relies on roaming.







    Then there’s the discussion of matching transmit power levels from the APs with your client devices. How do you know which transmit power to set it to when you have many different types of clients?







    These are the topics we talk about in this episode. Let us know what your optimization tips are in the comments below.

    • 45 min
    CTS 258: This Week In Wireless – 802.11-2020

    CTS 258: This Week In Wireless – 802.11-2020

    New IEEE-802.11 Standard







    The IEEE published, on February 26th, a new version of the IEEE 802.11 standards. It is called IEEE-802.11-2020. Did you get your copy yet?









    Congratulations to the TGmd Task Group on the publication of IEEE 802.11-2020, officially published on 26 February, 2021!— Rick Murphy (@RickMurphyWiTS) February 26, 2021









    But take note: 802.11ax didn’t make it to this version – womp womp.







    You can buy it here if you cannot wait: https://standards.ieee.org/standard/802_11-2020.html







    Here is the timeline of the 802.11 group: https://www.ieee802.org/11/Reports/802.11_Timelines.htm







    Wi-Fi Awards







    They have announced the 2021 winners:







    * 2021 Company Leadership of the Year: Mist Systems, a Juniper Company* Product of the Year: Ekahau Analyzer* Innovation of the Year: WLAN Pi* Rookie of the year: Gjermund Raaen* 2021 Content Contribution of the Year: Rowell Dionicio* Lifetime Achievement Award: Peter Mackenzie







    Check out all the winners here: https://thewifiawards.com/2021-award-winners







    For all the award finalists, check them out here: https://thewifiawards.com/award-finalists







    News from the WLA







    The Wireless LAN Association published a standardized framework for WLAN standards this week.







    Here is the link: https://wlanassociation.org/wla-standards-framework/







    They are working on 4 standards documents:







    * Red book: Define* Blue book: Design* Grey book: Deploy* Green book: Diagnose Validate







    What are your thoughts?







    News from the Wi-Fi Alliance







    The Wi-Fi Alliance has been announcing a few things since the beginning of the year:







    Wi-Fi CERTIFIED Vantage: Wi-Fi Alliance certification problem that improves mobility and allows users to experience more consistent connections while roaming within and across networks by reducing airtime overhead and enabling faster authentication to the selected access point.







    Wi-Fi CERTIFIED Vantage is composed of the following certifications:







    * Wi-Fi 5 or 6* Passpoint* Wi-Fi Agile Multiband* Wi-Fi Optimized Connectivity (the new kid on the block)







    Wi-Fi CERTIFIED Optimized Connectivity: improves mobility and allows users to experience more consistent connections while roaming within and across Wi-Fi® networks, and between Wi-Fi and cellular networks.







    Link: https://www.wi-fi.org/discover-wi-fi/wi-fi-optimized-connectivity







    Technical document: https://www.wi-fi.org/downloads-registered-guest/Wi-Fi_Optimized_Connectivity_Specification_v2.0_0.pdf/37256







    FILS: Fast Initial Link Setup (802.11ai)

    • 39 min
    CTS 257: When Should You Do APoS?

    CTS 257: When Should You Do APoS?

    In this episode, Rowell and I talk about some of the reasons why we do some AP-on-a-Stick site surveys. Both of us share some of the APoS work we have been doing in different environments.







    We get into some of the equipment we used to make our measurements. And we also talk about what we do with the data we have collected.







    Have fun listening and feel free to share it with your friends and colleagues!







    If you want to learn more about APoS site surveys, both Rowell and I developed a practical guide that we have available on this website: courses.cleartosend.net.







    Here is a gallery of some pictures we have taken from the work we have been doing:

    • 40 min

Customer Reviews

4.7 out of 5
55 Ratings

55 Ratings

JR-John ,

Awesome!

Very technical and informational, helped me a lot! ^_^👍👍

bryan_dearth ,

The Best by Far!

I’ve been listening to this podcast since September 2018, and I have to say it’s the most enjoyable technical podcast I’ve listened to by far. It’s so good in fact, I’ve gone back and listened to almost all of the old episodes as well. From interviews and current news, 802.11 basics to WiFi 6 deep dives, this one covers all the bases. If you are looking for a way to fill you commute and have a passion for Wireless Engineering, do yourself a favor and give this one a try.

Rowell and Francois, please keep the episodes coming!

ortiz3m ,

Great Podcast for those commuting and wanting to become better Engineers

I've been listening to CTS for the last few months and its so refreshing. Sometimes as engineers we can get into a stride and comfortable. This podcast helped me get out and refocused about learning the ins and outs of 80211. Its so important for wireless engineers to be knowledgeable about our environment and Rowell/Francois help with focused episodes. Whether its the new stuff with ofdma, learning what it takes to be CWNE, or fundamentals of proper RF design, you will learn/refresh alot of information that will make you a better 802.11 engineer!

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