Packets DownRange
Rain Rain Rain. Indiana has been rained on this week. Things are flooded but the Internet still works! So fire up your terminal, and let’s head down range. Patreon Subscribers can view additional news here. It’s only $3 a month. It’s like buying me a Red Bull once a month. Interconnection & Data Center News•Inside … Read more
I am in the process of converting all subscribers from Noption to the JetpackNewsletters. I apologize if you receive any duplicates. This will allow for more granular control over what you receive. More announcements coming soon.
If you work around data centers and high-density builds, you have probably heard the term “Multi-Core Fiber” thrown around. People use it in a few different ways. Sometimes, it means a new fiber trunk that comes into a cabinet as a single cable and breaks out into dozens or even hundreds of fibers. That setup … Read more
Prefix lists define which BGP routes match a policy. Route maps use those matches to permit routes, deny them, or change attributes such as local preference.
I am excited to unveil the latest design in the J2 Tech clothing line. The Tower Sneaker. These custom shoes are handmade by master Italian craftsman from pristine Italian leather. Each designer pair is a one-of-a-kind, combining handcrafting tradition, quality and modern style for a product that’s perfectly Italian. High-top sneaker with a retro vibe … Read more
Troubleshooting Tarana wireless customer connections means looking at RSSI, SNR, modulation, retransmissions, latency, sector utilization, and trends together.
A prefix can appear in the global BGP table and still have a routing problem. The route may originate from the wrong ASN. Its ROA may also authorize a shorter prefix but reject the advertised prefix length. Checking each part normally means pulling data from several routing tools. The J2SW Prefix Advertisement Checker, my 3rd … Read more
The J2SW BGP Community Builder selects documented provider communities and generates scoped policy fragments for MikroTik, Cisco, Junos, and FRRouting.
Being in the ISP world I see the home router and network cause a majority of the problems blamed on the ISP. Most home networks put the router, switch, firewall, and Wi-Fi radios into one do-it-all box. This can be underpowered in terms of both processing power and Wi-Fi signal strength. In this post, I … Read more
What’s new in 4.3 (2026-Jul-20 10:14): *) app: add Windows for arm64 version in file WinBox_Windows_arm64.zip;*) form: make multiline input field height logic as in WinBox v3;*) table: add quick comment feature (allow multi-row commenting);*) table: allow opening “Table settings” also via right mouse click;*) table: calculate implicit height to fit 16 regular rows including … Read more
Ever wondered what the effects of different combinations of PPPoE, GRE, and others have on the MTU of a packet? I am excited to announce the first of many J2 Network tools: the J2SW MTU and Encapsulation Calculator. You select the service MTU and the encapsulation used on the path. The calculator then works out … Read more
