Distributed Layer 3 Roaming with Meraki

In this video we'll take a look at Distributed Layer 3 Roaming with Meraki. More documentation on this feature can be found here.

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Designing Wi-Fi for High Density

In technical interviews, I often ask (and am often asked): How would you design a Wi-Fi network to support a large room with 1000 devices? The question is purposely vague to identify how someone thinks through a problem that doesn't have a single answer, and to observe how thoroughly they respond. Below I'll take my … Continue reading Designing Wi-Fi for High Density

Multicast over Wireless

Multicast has brought a lot of efficiencies to IP networks. But multicast wasn’t designed for wireless, and especially isn’t well suited for high-bandwidth multicast applications like video. I'll cover the challenges of multicast over wireless and design considerations. But first, an overview of multicast: To level set, I'll briefly cover IP multicast. For the purposes … Continue reading Multicast over Wireless

Deploying Wi-Fi for Location Analytics

Many Wi-Fi vendors on the market now include the capability to leverage access points for location analytics in addition to serving clients. However, deploying location analytics has its own set of requirements, and attempting to simply leverage the same APs for location analytics may have suboptimal results if not planned out correctly. The following sections … Continue reading Deploying Wi-Fi for Location Analytics

Wifi and Meraki Widgets for Mac and Windows

I recently decided to try to learn how to write python a little bit. I'm still not very good at it, however I did create something recently that I feel should be shared! Meraki local status pages can provide some very useful information for troubleshooting, however having to browse to ap.meraki.com/switch.meraki.com/wired.meraki.com is not always desirable, … Continue reading Wifi and Meraki Widgets for Mac and Windows

Deconstructing the RADIUS CoA process

If you need to brush up on the RADIUS process, please read my previous post: Following the 802.1X AAA process with Packet Captures Everyone talks about it, yet I rarely meet folks that really understand what CoA (Change of Authorization) means for RADIUS authentication and client access. I recently spent a few hours troubleshooting RADIUS … Continue reading Deconstructing the RADIUS CoA process

Using editcap to prune a packet capture

This is just a quick one. I recently needed to filter out a couple packet captures of unneeded frames/packets for some training material. I had unfortunately captured a crap ton of data though and really didn't want to post the whole 20M pcap file. I ran across the wireshark function called "editcap". There is a … Continue reading Using editcap to prune a packet capture