Packets Down Range #36: BlueBird, Cisco, HOUIX
Summer is finally here in Indiana. The leaves are green, the birds are chirping, and the Internet is humming along. Let’s get right into PDR #36. Interconnection & Data Center News•KC-IX/HOUIX expands into Fibertown. •Rich Miller shares his top 5 …
Cisco BGP Troubleshooting: Essential Commands Every Network Engineer Should Know
When BGP (Border Gateway Protocol) misbehaves, the ripple effect can be massive—routes disappear, prefixes flap, and connectivity grinds to a halt. Whether you’re managing a large enterprise edge or an ISP core, knowing how to quickly diagnose BGP issues on …
Understanding Switch Trunk Ports: Cisco vs. Dell and Other Vendors
In modern networking, switch trunk ports play a vital role in ensuring smooth communication across VLANs (Virtual Local Area Networks). While the concept of a trunk port is consistent across networking vendors, the implementation details can vary. In this blog …
What is a Data Center Interconnect
As you become more familiar with Cisco Data Center terminology, you will encounter the term DCI. A DCI is a Data Center Interconnect. DCIs typically fall into three categories. Dark Fiber (CWDM/DWDM)MPLS Layer 2 VPN (VPWS/VPLS)MPLS Layer 3 VPN A …
Packets Down Range #31: Hedge Podcast, Microsoft, Cisco, Arista.
It’s been a busy almost spring so far. One of the highlights of the past few months was being invited to do a Hedge Podcast with Russ White and Tom Ammon. It was a great time. We talked about the …
How to prepare for the Cisco Certified Network Associate (CCNA) exam
Before diving into the study strategies, it’s essential to grasp the fundamentals of the CCNA exam: Now, let’s explore a comprehensive study approach for success in the CCNA exam: Gather Study MaterialsAcquire the necessary study materials, including official Cisco CCNA …
What is BGP next-hop-self and why you should care?
In this blog post, we’ll demystify the concept of next-hop-self in BGP, why it’s crucial, and how it affects routing decisions. What Is Next-Hop-Self in BGP? In BGP, the “next hop” is the IP address used to reach a particular …
Packets Down Range #17:Cogent Wavelengths, earnings news, DDoS
I am fresh back from Nanog #87 in Atlanta. Great times! Thank you to those who gave me some lines on this week’s news articles. Keep those submissions coming. By now, everyone who has signed up should be receiving this …
Auto mapping your Cisco Network
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Running Docker inside Cisco Catalyst 9000
https://blogs.cisco.com/networking/application-hosting-on-catalyst-9000-series-switches Catalyst 9000 series of switches, Cisco’s flagship enterprise switching portfolio delivering Intent Based Networking (IBN) runs a modern, modular and model-driven operating system stack, Cisco IOS® XE. Powered by Intel x86 CPU, Catalyst 9000 series now supports secure Docker™ …