Recent Posts - page 14
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2016 Cisco Live, US – Geeks for life. — Just another day at the office…
CiscoLive 2016 LasVegas was my absolute favorite CiscoLive EVER! They just keep getting better and better and better every year! I so adore my “Nerd Herd” friends. I was going to write a blog.. but I just couldn’t find the… Read More ›
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The Case of the Failed IPv6 Ping – Part 2: The Solution
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The Case of the Failed IPv6 Ping – Part 1: The Facts and Clues
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My Cisco Live 2016 Schedule
Ever since my blog, CiscoLive 2016: ‘Summer Camp for Geeks’, I’ve been getting questions about what my personal CLUS schedule typically looks like for the week. CiscoLive 2016 will be my 11th CiscoLive US (“#CLUS”) and my 13th CiscoLive in… Read More ›
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My Current IWAN Analogies
I use analogies. Just how my brain works…. and how I sometimes learn and teach. Token-ring source-route bridging analogy was “breadcrumbs thru the network”. Analogy for DLSw+ was a boat getting the breadcrumbs over water between 2 islands. I think… Read More ›
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Clearing Up Some Misinformation RE: eBGP Multihop and TTL
Myth: You have to set ttl to 2 because it is decremented on the way to the loopback. Years and years ago I was trying to learn more about BGP and I was reading some book with a chapter on… Read More ›
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Pop Up Tech Talks: Denise Fishburne
Earlier today I saw a tweet that @PopUpTechTalks had uploaded their interview of me up to their YouTube Channel. I was super stoked! 🙂 Just had to share it with y’all! SolidFire’s Amy Lewis speaks with Cisco’s Denise Fishburne aka… Read More ›
Featured Categories
Network Detective ›
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Why IT-Site1 Can’t Ping OT_Site1R – Show and Tell Time #1
September 9, 2025
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Troubleshooting OT Security: Why IT-Site1 Can’t Ping OT_Site1R
August 27, 2025
BGP ›
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BGP Graceful Restart on the Cisco FTD: Part 2 – Seeing it “In Action”
May 17, 2022
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BGP Graceful Restart on the Cisco FTD: Part 1 – Configuring
May 17, 2022
Multicast ›
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mVPN Fun in the Lab: Troubleshooting the MVPN Cloud – Part 6 of 6
March 29, 2019
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Network Detective Ride-Along: Troubleshooting Multicast
May 27, 2018
IPv6 ›
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Understanding IPv6: Solicited-Node Multicast In Action (Part 7 of 7)
February 22, 2018
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Understanding IPv6: The Ping Before Solicited-Node Multicast (Part 6 of 7)
February 22, 2018
MPLS ›
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Troubleshooting Basic MPLS L3VPN – Part 2 – MPLS
February 23, 2021
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Troubleshooting Basic MPLS L3VPN – Part 1 – BGP
February 23, 2021
