Recent Posts - page 11
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Understanding IPv6: The Journey Begins (Part 1 of 7)
IPv6 and I met back in the early 2000s. After the initial getting used to the 128 bits and the odd /64 mask I thought I “knew” IPv6. I really didn’t see why people found it so difficult. Looking back… Read More ›
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The Case of the Flapping BGP Routes: A Network Detective Ride-Along
Let’s go on a Network Detective Ride-Along together! 🙂 YouTube Style! Case open to case closed in less than 15 minutes. You ride along! Below you will find the link to the troubleshooting ride-along as well as 3 very helpful… Read More ›
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Ready for CiscoLive 2018 Barcelona? Woot! Woot! See ya there!
In less than 2 weeks CiscoLive Europe 2018 will be in full swing! And, as usual, I am so incredibly excited! 🙂 This happens to me before every CiscoLive…. round about two weeks prior to the start of the event. … Read More ›
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Fish Gets a New Job: “Solutions Architect”
Many of the best things that have happened in my life weren’t planned. 🙂 Becoming a “Solutions Architect” is one of those things. I didn’t plan it. I’ve been in CPOC (Customer Proof of Concept) for almost 17 years now. … Read More ›
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Certifications: Why I Like Them, How I Use Them
The other day Daniel Dib (http://lostintransit.se) asked me an interview question. The question was about certifications. What do I think about them…. and are they losing their “value”. Poor certifications. People question their value. Of course “value” typically means for… Read More ›
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Security with Fish: My First Couple Months
In late June I wrote Security Here I Come! The transition wasn’t quite as fast as I thought it would be. 🙂 But for the past couple months I’ve been able to really start digging in. My initial response after… Read More ›
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Woot! Passed My CCDE Recert (2nd Attempt)
Friday, August 18th was the day. Yup. Just last week. My 2nd attempt at the CCDE written to re-certify my 3 “Es”. To say I was nervous would very much be a decided understatement. I don’t think I have ever… Read More ›
Featured Categories
Network Detective ›
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Tips from a Network Detective
April 12, 2021
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Troubleshooting Basic MPLS L3VPN – Part 2 – MPLS
February 23, 2021
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 1 – BGP
February 23, 2021
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The “Case of the Broken MPLS L3VPN” – Time to Troubleshoot!
April 11, 2019