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 …
Patreons: MikroTik v7 BGP Troubleshooting Commands
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …
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 …
Achieved new Calix Certificates
Through my job at Nexstream, I have been utilizing Calix University to further my education in the broadband space. I am happy to announce that I have achieved several certificates over the past month.
VRF article in an audio format
Recently, I did a VRF article. Like everyone else, I am seeing what all AI can do. As a result, I have been utilizing an AI tool to convert some of my articles to an audio format (Thanks, Cameron). The …
Border Gateway Protocol (BGP): How the Internet’s Routing Protocol Works
Border Gateway Protocol (BGP) is a protocol that makes the Capitl I Internet run. It is the fundamental system that Internet Service Providers (ISPs) and large networks use to exchange reachability information and ensure data finds its way across the …
Top Hacking Books for cybersecurity professionals
Cybersecurity is among the fastest-growing fields today, offering exciting challenges, high demand, and strong earning potential. If you’re interested in protecting systems, networks, and data from cyber threats, here are some books to get you started. 1. Web Application Hacker’s …
What is a router VRF and why it matters
This post will walk you through what a VRF is, why it matters, and how it’s used in real-world networking. What is a VRF? VRF stands for Virtual Routing and Forwarding. It’s a technology that allows multiple instances of routing …
VRF Architectures
1. Basic VRF Architecture Diagram A single router with two VRFs (e.g., Customer_A and Customer_B), each with its own routing table and interface. Purpose: Shows how two VRFs keep overlapping IP spaces separated. 2. Traffic Isolation in VRFs Two devices …
Much welcome BGP changes in Mikrotik routeros 7.19beta
*) bgp – added input.filter-community;*) bgp – fixed excessive CPU usage;*) bgp – fixed input.accept-community;*) bgp – fixed memory leak on receiving notify and closing session;*) bgp – improved performance on BGP input;