# Network Engineering Resources Published articles for Network Engineering Resources. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## LibreQoS 2.2 is out DevFeed: [LibreQoS 2.2 is out]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-20T15:11:31Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [changelog](), [Network](), [service](), [browser](), [interface](), [sessions](), [API]() Tags: [2-2](), [api](), [browser](), [changelog](), [improvements](), [interface](), [libreqos](), [network](), [network-engineering-resources](), [service](), [sessions]() ### AI overview This changelog describes LibreQoS 2.2, released on August 18, 2026, and its changes since version 2.1. It covers browser-based installation and setup, visual topology building, subscriber shaping from RADIUS sessions, traffic comparisons, and related improvements to LibreQoS Insight and the paid LibreQoS API. ### Source excerpt LibreQoS 2.2 ChangeLog LibreQoS 2.2: What Changed Since 2.1 LibreQoS 2.2 guides operators from a fresh install through admin creation, interface selection, network preview, and service startup in the browser. Operators can build topology visually, shape subscribers created from RADIUS sessions, and compare queued demand with traffic that actually crossed the wire. This changelog covers ... Read more The post LibreQoS 2.2 is out appeared first on Justin Wilson (j2sw). ## Multi-Core Fiber: Several Optical Cores Inside One Strand DevFeed: [Multi-Core Fiber: Several Optical Cores Inside One Strand]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-18T13:39:00Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [Hardware](), [Networks](), [interface]() Tags: [400g](), [cabling](), [channel](), [connectors](), [data-center](), [fiber](), [fiber-optics](), [internet-architecture](), [multi-core-fiber](), [network-engineering-resources](), [networks](), [optical-networking](), [optics](), [space-division-multiplexing](), [transmission]() ### AI overview This article explains how multi-core fiber places several optical cores inside one standard 125-micron cladding. It distinguishes MCF from high-fiber-count cable, describes aggregate capacity using separate channels and space-division multiplexing, and explains the need for specialized optical interfaces, connectors, splicing, and testing. ### Source excerpt Multi-core fiber places several independent optical cores inside one standard 125-micron cladding. It increases channel density, but it also requires different connectors, splicing methods, and testing procedures. The post Multi-Core Fiber: Several Optical Cores Inside One Strand appeared first on Justin Wilson (j2sw). ## Alta Labs AP7 Pro: Quick Look and First Impressions DevFeed: [Alta Labs AP7 Pro: Quick Look and First Impressions]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-14T16:57:37Z Content type: article Language: en Sources: [Justin Wilson (j2sw)]() Topics: [Quick Look](), [Hardware](), [Wi-Fi]() Tags: [access-point](), [alta-labs](), [ap7-pro](), [equipment](), [hardware](), [look](), [network-engineering-resources](), [networking](), [wi-fi](), [wifi](), [wireless]() ### AI overview A video provides a quick look at the Alta Labs AP7 Pro access point, showing its hardware and offering initial impressions. It is not a full review or performance test; follow-up testing is planned after installation and real traffic use. ### Source excerpt I am getting back to recording some videos, and this time I am taking a quick look at the Alta Labs AP7 Pro. This is not meant to be a full review or performance test. I wanted to get the AP7 Pro on camera, show the hardware, and give everyone a closer look at the ... Read more The post Alta Labs AP7 Pro: Quick Look and First Impressions appeared first on Justin Wilson (j2sw). ## Multi-Core Fiber and How It Is Used in Data Centers DevFeed: [Multi-Core Fiber and How It Is Used in Data Centers]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-12T14:27:20Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [data centers](), [datacenter]() Tags: [400g](), [cabling](), [connectors](), [data-center](), [data-centers](), [fiber](), [fiber-optics](), [it-operations](), [mpo](), [mtp](), [multi-core-fiber](), [network-engineering-resources](), [optics](), [panel](), [parallel](), [single-mode](), [structured-cabling]() ### AI overview This article explains how "multi-core fiber" is used in data center discussions, distinguishing multi-fiber or high-fiber-count cables from true multicore fiber. It covers cable construction, fiber counts, single-mode and multimode options, and MPO and MTP connectors. ### Source excerpt 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 The post Multi-Core Fiber and How It Is Used in Data Centers appeared first on Justin Wilson (j2sw). ## Using Cisco Prefix Lists Inside Route Maps for BGP Filtering DevFeed: [Using Cisco Prefix Lists Inside Route Maps for BGP Filtering]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-11T14:48:44Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [BGP](), [Cisco](), [Network]() Tags: [bgp](), [bgp-filtering](), [cisco](), [internet-architecture](), [network-engineering](), [network-engineering-resources](), [prefix-lists](), [route-maps](), [routing-policy]() ### AI overview This tutorial explains how Cisco prefix lists and route maps work together for BGP filtering. Prefix lists define which routes match, while route maps apply actions such as permitting, denying, or modifying route attributes. It also describes route-map sequence order and implicit deny behavior. ### Source excerpt 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. The post Using Cisco Prefix Lists Inside Route Maps for BGP Filtering appeared first on Justin Wilson (j2sw). ## Alta labs: AP7-Pro 3.0i and AP6 2.4j Released DevFeed: [Alta labs: AP7-Pro 3.0i and AP6 2.4j Released]() Original publisher: [Read original article]() Author: j2sw Published: 2026-08-08T02:41:16Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [releases](), [Release notes]() Tags: [alta](), [alta-labs](), [ap7-pro](), [compatibility](), [devices](), [firmware](), [identity](), [mesh](), [nas](), [network-engineering-resources](), [release](), [release-notes](), [reporting](), [system](), [wireless]() ### AI overview Alta Labs released AP7-Pro version 3.0i and AP6 version 2.4j. The updates improve WPA3 transition-mode compatibility, add NAS-IP-Address to RADIUS frames, address mesh and 802.1x identity reporting issues, and improve AP7-Pro system stability. ### Source excerpt https://forum.alta.inc/c/release-notes/13 The post Alta labs: AP7-Pro 3.0i and AP6 2.4j Released appeared first on Justin Wilson (j2sw). ## The Third App from J2sw: Prefix Advertisement Checker DevFeed: [The Third App from J2sw: Prefix Advertisement Checker]() Original publisher: [Read original article]() Author: j2sw Published: 2026-07-31T12:17:00Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [BGP](), [networking](), [App](), [Cisco](), [MikroTik]() Tags: [application](), [bgp](), [irr](), [j2-networks](), [j2-updates](), [network-engineering-resources](), [network-tools](), [network-troubleshooting](), [prefix-advertisement](), [ripe-ris](), [roa](), [routing](), [routing-policy](), [rpki](), [visibility]() ### AI overview This article describes the J2SW Prefix Advertisement Checker, an application that evaluates an exact IPv4 or IPv6 prefix using live BGP data. It reports observed origin ASNs from RIPE RIS collectors, collector visibility, RPKI/ROA status, and matching IRR route objects, with an optional expected origin ASN for comparison. ### Source excerpt 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 post The Third App from J2sw: Prefix Advertisement Checker appeared first on Justin Wilson (j2sw). ## Introducing the J2SW BGP Community Builder DevFeed: [Introducing the J2SW BGP Community Builder]() Original publisher: [Read original article]() Author: j2sw Published: 2026-07-29T18:30:21Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [BGP](), [networking](), [Routing (disambiguation)](), [configuration]() Tags: [aws-direct-connect](), [bgp](), [bgp-communities](), [builder](), [cisco](), [cogent](), [frrouting](), [hurricane-electric](), [juniper](), [mikrotik](), [network-engineering-resources](), [ntt](), [routing-policy]() ### AI overview The J2SW BGP Community Builder helps users select documented provider communities and routing actions, then generates scoped configuration fragments. It includes RFC well-known communities and policies from AWS Direct Connect, NTT DATA, Hurricane Electric, and Cogent Communications, with support for MikroTik RouterOS 7, Cisco IOS-XE, Juniper Junos, and FRRouting. ### Source excerpt The J2SW BGP Community Builder selects documented provider communities and generates scoped policy fragments for MikroTik, Cisco, Junos, and FRRouting. The post Introducing the J2SW BGP Community Builder appeared first on Justin Wilson (j2sw). ## My Plan for an All-Alta Labs Home Network DevFeed: [My Plan for an All-Alta Labs Home Network]() Original publisher: [Read original article]() Author: j2sw Published: 2026-07-29T14:40:00Z Content type: opinion Language: en Sources: [Justin Wilson (j2sw)]() Topics: [Network](), [Firewall](), [Hardware](), [Wi-Fi](), [Internet](), [DHCP]() Tags: [access-points](), [alta-labs](), [altapass](), [deployment](), [dhcp](), [firewall](), [hardware](), [home-networking](), [internet](), [network](), [network-engineering-resources](), [network-switches](), [poe](), [reviews](), [route10](), [technology-industry-commentary](), [vlans](), [wi-fi]() ### AI overview Justin Wilson outlines a planned Alta Labs home network using the Route10 router, PoE switches, and strategically placed access points. The article compares hardware options for different home sizes, device counts, uplink speeds, and coverage needs. ### Source excerpt 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 The post My Plan for an All-Alta Labs Home Network appeared first on Justin Wilson (j2sw). ## Mikrotik Winbox 4.3 is out DevFeed: [Mikrotik Winbox 4.3 is out]() Original publisher: [Read original article]() Author: j2sw Published: 2026-07-29T14:38:07Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [MikroTik](), [Windows](), [Zip](), [GUI](), [layout]() Tags: [2026](), [feature](), [file](), [form](), [input](), [layout](), [mikrotik](), [network-engineering-resources](), [performance](), [redesign](), [render](), [right](), [sorting](), [table](), [toolbar](), [ui](), [v3](), [version](), [widget](), [winbox](), [windows](), [zip]() ### AI overview MikroTik WinBox 4.3 is a release update that adds a Windows ARM64 package and introduces or improves table, form, toolbar, settings, font, login, window-selection, layout, and scrolling behavior. ### Source excerpt 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 The post Mikrotik Winbox 4.3 is out appeared first on Justin Wilson (j2sw). ## Introducing the J2sw MTU and Encapsulation Calculator DevFeed: [Introducing the J2sw MTU and Encapsulation Calculator]() Original publisher: [Read original article]() Author: j2sw Published: 2026-07-28T16:37:53Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [Network](), [Tool](), [Ethernet](), [VXLAN]() Tags: [calculator](), [cisco](), [ethernet](), [fragmentation](), [gre](), [headers](), [ipsec](), [ipv4](), [ipv6](), [juniper](), [mikrotik](), [mpls](), [mtu](), [network-engineering-resources](), [network-tools](), [network-troubleshooting](), [overhead](), [payload](), [pppoe](), [vlan](), [vxlan]() ### AI overview The article introduces the J2SW MTU and Encapsulation Calculator, which estimates inner IP MTU and required underlay MTU for combinations of PPPoE, GRE, VLAN, MPLS, VXLAN, and other encapsulations. It explains how Layer 2 tags affect Ethernet frame size separately from IP MTU and describes overhead calculations, including cases where fragmentation can be avoided. ### Source excerpt 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 The post Introducing the J2sw MTU and Encapsulation Calculator appeared first on Justin Wilson (j2sw). ## Sam's First Visit to An Internet Exchange DevFeed: [Sam's First Visit to An Internet Exchange]() Original publisher: [Read original article]() Author: j2sw Published: 2026-06-25T03:54:15Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [networking](), [Networks](), [Internet Traffic](), [BGP]() Tags: [bgp](), [book](), [books](), [children](), [explainer](), [fiber](), [internet](), [internet-architecture](), [internet-exchange](), [internet-traffic](), [ix](), [ixp](), [j2-updates](), [j2sw](), [justin-wilson](), [network-engineering-resources](), [networking](), [networks](), [peering](), [router](), [sam](), [stem-book](), [traffic]() ### AI overview Justin Wilson announces A Kid's First Visit to An Internet Exchange, a children's picture book in which Sam learns how networks connect, peer, and move Internet traffic. The book is available in Kindle and paperback editions. ### Source excerpt Justin Wilson announces his second children's networking book, A Kid's First Visit to an Internet Exchange. Follow Sam as he learns how networks meet, peer, and move Internet traffic. The post Sam's First Visit to An Internet Exchange appeared first on Justin Wilson (j2sw). ## Example BGP Configuration on the Alta Labs Route10 DevFeed: [Example BGP Configuration on the Alta Labs Route10]() Original publisher: [Read original article]() Author: j2sw Published: 2026-06-17T03:44:45Z Content type: tutorial Language: en Sources: [Justin Wilson (j2sw)]() Topics: [BGP](), [Routing (disambiguation)](), [configuration](), [networking](), [Command-line interface]() Tags: [alta-labs-configuration](), [alta-labs-route-10](), [bgp](), [bgp-example](), [bgp-tutorial](), [cisco](), [configuration](), [eos](), [frr](), [frrouting](), [frrrouting](), [interface](), [linux](), [network-engineering-resources](), [peer](), [route](), [route-10-bgp](), [routing]() ### AI overview A configuration guide for using BGP on the Alta Labs Route10, which provides dynamic routing through an FRR-style shell. It covers private ASNs, example prefix advertisement, interface addressing, access to the configuration shell, and session verification. ### Source excerpt The Alta Labs Route10 includes dynamic routing support through FRRouting (FRR). This article walks through a complete BGP configuration example using private ASNs, a test prefix advertisement, inbound community tagging, and route filtering. It also covers where to access the FRR shell within the Route10 interface and how to verify that the BGP session is operating correctly. The post Example BGP Configuration on the Alta Labs Route10 appeared first on Justin Wilson (j2sw). ## Alta Labs releases IpSec "Turbo" DevFeed: [Alta Labs releases IpSec "Turbo"]() Original publisher: [Read original article]() Author: j2sw Published: 2026-06-12T17:00:05Z Content type: release Language: en Sources: [Justin Wilson (j2sw)]() Topics: [releases](), [Virtual Private Network](), [Hardware]() Tags: [2026](), [alta-labs](), [firmware](), [hardware](), [ipsec](), [network-engineering-resources](), [releases](), [turbo](), [vpn]() ### AI overview Alta Labs released firmware version 1.5a on June 3, 2026, adding hardware-accelerated IPsec "turbo" and reporting near-gigabit VPN speeds. ### Source excerpt 1.5a Released on 06/03/2026 https://forum.alta.inc/t/route10-firmware-1-5a-released/6754 The post Alta Labs releases IpSec "Turbo" appeared first on Justin Wilson (j2sw). ## Mikrotik quietly adds features to the Winbox package updates DevFeed: [Mikrotik quietly adds features to the Winbox package updates]() Original publisher: [Read original article]() Author: j2sw Published: 2026-06-12T14:11:16Z Content type: news Language: en Sources: [Justin Wilson (j2sw)]() Topics: [MikroTik]() Tags: [features](), [mikrotik](), [network-engineering-resources](), [packages](), [rosv7](), [routeros](), [system](), [updates](), [updating]() ### AI overview MikroTik has added new features related to updating system packages in Winbox. The article provides few details and says more information will follow. ### Source excerpt Mikrotik has added some new features to system...packages as far as updating goes. More info to come soon. The post Mikrotik quietly adds features to the Winbox package updates appeared first on Justin Wilson (j2sw).