41554 blogs · [ { "id": "01a0874b-e028-73b9-9c11-8ba02ea8d8d5", "title": "netlab Graphs with Multi-Access Links", "url": "https://blog.ipspace.net/2026/03/netlab-graphs-multiaccess/?utm_source=atom_feed", "published_at": "2026-03-16T07:03:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba02f139379", "title": "Network Device Telemetry Protocols with Dinesh Dutt", "url": "https://blog.ipspace.net/2026/03/network-device-telemetry-protocols/?utm_source=atom_feed", "published_at": "2026-03-13T06:41:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba02fbf2de8", "title": "IPv4 ECMP Works on Arista cEOS Release 4.35.2F", "url": "https://blog.ipspace.net/2026/03/ecmp-arista-ceos/?utm_source=atom_feed", "published_at": "2026-03-12T09:09:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba0303865a7", "title": "Dynamic Path MTU Discovery in Cloudflare One Client", "url": "https://blog.ipspace.net/2026/03/worth-reading-cloudflare-vpn-dynamic-mtu/?utm_source=atom_feed", "published_at": "2026-03-11T07:14:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba030a6342f", "title": "netlab 26.03: EVPN/MPLS, IOS XR Features", "url": "https://blog.ipspace.net/2026/03/netlab-26-03/?utm_source=atom_feed", "published_at": "2026-03-10T08:11:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba030e61bdc", "title": "Automating netlab-Based Cisco SD-WAN Deployment", "url": "https://blog.ipspace.net/2026/03/cisco-sdwan-netlab/?utm_source=atom_feed", "published_at": "2026-03-09T07:29:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba0312d53bc", "title": "Presentation: netlab Overview and Use Cases (NetBCN)", "url": "https://blog.ipspace.net/2026/03/netlab-use-cases/?utm_source=atom_feed", "published_at": "2026-03-05T08:24:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba0314394d2", "title": "The Tale of Two EVPN/MPLS Encapsulations", "url": "https://blog.ipspace.net/2026/03/tale-two-evpn-mpls-encapsulations/?utm_source=atom_feed", "published_at": "2026-03-04T07:09:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba031826294", "title": "Worth Reading: Faster than Dijkstra?", "url": "https://blog.ipspace.net/2026/03/worth-reading-faster-than-dijkstra/?utm_source=atom_feed", "published_at": "2026-03-03T06:43:00+00:00" }, { "id": "01a0874b-e028-73b9-9c11-8ba0320017b3", "title": "netlab: Using L3VPN (MPLS/VPN) with SR-MPLS Core", "url": "https://blog.ipspace.net/2026/03/netlab-sr-mpls-l3vpn/?utm_source=atom_feed", "published_at": "2026-03-02T10:39:01+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f65af52d", "title": "Lab: More Complex EVPN/VXLAN Bridging Scenario", "url": "https://blog.ipspace.net/2026/02/lab-evpn-bridging-complex/?utm_source=atom_feed", "published_at": "2026-02-27T08:13:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f725e1e1", "title": "Configuring 6PE Route Reflector on Cisco IOS", "url": "https://blog.ipspace.net/2026/02/ios-6pe-route-reflector/?utm_source=atom_feed", "published_at": "2026-02-26T07:19:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f8027b76", "title": "On AI Agents Speaking BGP", "url": "https://blog.ipspace.net/2026/02/ai-speaking-bgp/?utm_source=atom_feed", "published_at": "2026-02-25T06:39:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f8498549", "title": "Interesting: Open Space Events", "url": "https://blog.ipspace.net/2026/02/worth-reading-open-space-conferences/?utm_source=atom_feed", "published_at": "2026-02-24T06:45:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f912effe", "title": "netlab: The Caveats of Using Startup Configurations", "url": "https://blog.ipspace.net/2026/02/netlab-startup-config-caveats/?utm_source=atom_feed", "published_at": "2026-02-23T06:23:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505f9ca090c", "title": "Cisco IOS/XR OSPFv2 Not-So-Passive Interfaces", "url": "https://blog.ipspace.net/2026/02/iosxr-ospfv2-not-so-passive/?utm_source=atom_feed", "published_at": "2026-02-19T06:46:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fab1d6e7", "title": "EVPN IP-VRFs on Cisco IOS/XE: Configuration Notes", "url": "https://blog.ipspace.net/2026/02/evpn-cisco-l3vpn/?utm_source=atom_feed", "published_at": "2026-02-18T06:31:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fb2a268d", "title": "Worth Reading: Modern Forwarding Architectures", "url": "https://blog.ipspace.net/2026/02/worth-reading-modern-forwarding-architectures/?utm_source=atom_feed", "published_at": "2026-02-17T06:55:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fb4d2464", "title": "Explore Configurations of Unfamiliar Devices with netlab", "url": "https://blog.ipspace.net/2026/02/netlab-device-configs/?utm_source=atom_feed", "published_at": "2026-02-16T07:28:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fbf0d329", "title": "Lab: Build an SR-MPLS Network with IS-IS", "url": "https://blog.ipspace.net/2026/02/isis-sr-mpls/?utm_source=atom_feed", "published_at": "2026-02-13T07:02:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fc8d9093", "title": "EVPN on Cisco IOS/XE: Configuration Notes", "url": "https://blog.ipspace.net/2026/02/evpn-cisco-ios/?utm_source=atom_feed", "published_at": "2026-02-12T06:41:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fcbd9b3a", "title": "netlab 26.02: KinD support, more EVPN/VXLAN", "url": "https://blog.ipspace.net/2026/02/netlab-26-02/?utm_source=atom_feed", "published_at": "2026-02-11T09:15:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fdb05247", "title": "Open-Source Network Simulators (2026 Edition)", "url": "https://blog.ipspace.net/2026/02/worth-reading-opensource-network-simulators/?utm_source=atom_feed", "published_at": "2026-02-10T07:09:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fde6c4c0", "title": "Fast Arista cEOS Container Configuration", "url": "https://blog.ipspace.net/2026/02/netlab-eos-configuration/?utm_source=atom_feed", "published_at": "2026-02-09T06:23:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fe3af1d9", "title": "Lab: Routing Between VXLAN Segments", "url": "https://blog.ipspace.net/2026/02/lab-vxlan-irb/?utm_source=atom_feed", "published_at": "2026-02-06T06:59:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fe4638eb", "title": "On MPLS Forwarding Performance Myths", "url": "https://blog.ipspace.net/2026/02/mpls-forwarding-performance/?utm_source=atom_feed", "published_at": "2026-02-05T07:20:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505fee3dd78", "title": "OMG, After a Decade, VXLAN Is Still Insecure", "url": "https://blog.ipspace.net/2026/02/worth-reading-omg-vxlan-still-insecure/?utm_source=atom_feed", "published_at": "2026-02-04T06:22:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6505ff7cffbd", "title": "Interface MAC Address in IOS Layer-2 Images", "url": "https://blog.ipspace.net/2026/02/ios-layer2-mac-address/?utm_source=atom_feed", "published_at": "2026-02-03T07:08:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650600421ea1", "title": "Fast FRR Container Configuration", "url": "https://blog.ipspace.net/2026/02/netlab-frr-configuration/?utm_source=atom_feed", "published_at": "2026-02-02T06:47:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060102d87b", "title": "Opinion: Impact of AI on Networking Engineers", "url": "https://blog.ipspace.net/2026/01/ai-impact-networking-engineers/?utm_source=atom_feed", "published_at": "2026-01-29T07:04:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060120a272", "title": "Worth Reading: A Tech Career in 2026", "url": "https://blog.ipspace.net/2026/01/worth-reading-tech-career-2026/?utm_source=atom_feed", "published_at": "2026-01-28T07:22:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060122cf61", "title": "Lab: VXLAN Bridging with EVPN Control Plane", "url": "https://blog.ipspace.net/2026/01/lab-evpn-bridging/?utm_source=atom_feed", "published_at": "2026-01-27T06:59:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650601c2f128", "title": "Deploy Partially-Configured Training Labs with netlab", "url": "https://blog.ipspace.net/2026/01/netlab-partial-configuration/?utm_source=atom_feed", "published_at": "2026-01-26T06:53:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506027a38e4", "title": "MUST WATCH: BGP: the First 18 Years", "url": "https://blog.ipspace.net/2026/01/worth-reading-bgp-first-18-years/?utm_source=atom_feed", "published_at": "2026-01-23T07:17:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650602efc6e8", "title": "Why Doesn't netlab Use X for Device Configuration Templates?", "url": "https://blog.ipspace.net/2026/01/netlab-not-using-vendor-templates/?utm_source=atom_feed", "published_at": "2026-01-22T07:14:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650603ee3160", "title": "Lab: Distributing Level-2 IS-IS Routes into Level-1 Areas", "url": "https://blog.ipspace.net/2026/01/isis-inter-area-routes/?utm_source=atom_feed", "published_at": "2026-01-21T07:06:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506042a9bdf", "title": "On MPLS Paths, Tunnels and Interfaces", "url": "https://blog.ipspace.net/2026/01/mpls-paths-tunnels-interfaces/?utm_source=atom_feed", "published_at": "2026-01-20T06:29:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506043d258c", "title": "How Moving Away from Ansible Made netlab Faster", "url": "https://blog.ipspace.net/2026/01/netlab-faster-without-ansible/?utm_source=atom_feed", "published_at": "2026-01-19T06:36:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506044e21bc", "title": "Infrahub with Damien Garros", "url": "https://blog.ipspace.net/2026/01/infrahub-damien-garros/?utm_source=atom_feed", "published_at": "2026-01-16T06:47:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506045e5d6b", "title": "Using netlab to Set Up Demos", "url": "https://blog.ipspace.net/2026/01/using-netlab-demos/?utm_source=atom_feed", "published_at": "2026-01-15T07:15:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650604f78e5f", "title": "Do You Need IS-IS Areas?", "url": "https://blog.ipspace.net/2026/01/is-is-areas/?utm_source=atom_feed", "published_at": "2026-01-14T07:45:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650605923bd0", "title": "netlab 26.01: EVPN for VXLAN-over-IPv6, Netscaler", "url": "https://blog.ipspace.net/2026/01/netlab-26-01/?utm_source=atom_feed", "published_at": "2026-01-13T06:19:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650606707273", "title": "Happy Holidays and All the Best in 2026!", "url": "https://blog.ipspace.net/2025/12/wrapup-2025/?utm_source=atom_feed", "published_at": "2025-12-19T10:01:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650606a262f5", "title": "Hilarious: HTTP Status Codes as Pizza Images", "url": "https://blog.ipspace.net/2025/12/worth-reading-http-pizza/?utm_source=atom_feed", "published_at": "2025-12-17T10:31:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650606e50e4e", "title": "Has Ansible Team Abandoned Network Automation?", "url": "https://blog.ipspace.net/2025/12/ansible-abandoned-network-automation/?utm_source=atom_feed", "published_at": "2025-12-16T07:28:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060755ec40", "title": "Underscores (in Hostnames) Strike Again", "url": "https://blog.ipspace.net/2025/12/underscores-strike-again/?utm_source=atom_feed", "published_at": "2025-12-15T06:23:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506084ef7e0", "title": "Lab: Multilevel IS-IS Deployments", "url": "https://blog.ipspace.net/2025/12/multilevel-isis/?utm_source=atom_feed", "published_at": "2025-12-12T10:45:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506086d7387", "title": "IETF v6ops Working Group with Nick Buraglio", "url": "https://blog.ipspace.net/2025/12/v6ops-ietf-working-group/?utm_source=atom_feed", "published_at": "2025-12-11T07:03:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650608a88e01", "title": "Evergreen: The Big Ball of Mud", "url": "https://blog.ipspace.net/2025/12/worth-reading-big-ball-mud/?utm_source=atom_feed", "published_at": "2025-12-10T07:07:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650609a391c9", "title": "netlab 25.12: Cisco IOS/XR Configuration Modules, More VXLAN Goodies", "url": "https://blog.ipspace.net/2025/12/netlab-25-12/?utm_source=atom_feed", "published_at": "2025-12-08T06:16:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060a969735", "title": "Lab: More Complex VXLAN Deployment Scenario", "url": "https://blog.ipspace.net/2025/12/vxlan-complex/?utm_source=atom_feed", "published_at": "2025-12-05T06:22:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060adbe8a2", "title": "Technical Writing: Lower Your Expectations", "url": "https://blog.ipspace.net/2025/12/worth-reading-technical-writing/?utm_source=atom_feed", "published_at": "2025-12-04T06:24:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060baa9b54", "title": "Worth Watching: AI/ML Data Center Design", "url": "https://blog.ipspace.net/2025/12/worth-reading-ai-ml-data-center-design/?utm_source=atom_feed", "published_at": "2025-12-03T09:30:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060c215cdd", "title": "Multi-Pod EVPN Troubleshooting: Extended BGP Communities", "url": "https://blog.ipspace.net/2025/12/evpn-multi-pod-tshoot-xc/?utm_source=atom_feed", "published_at": "2025-12-02T05:47:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060cf0403b", "title": "netlab as the Universal Configuration Translator", "url": "https://blog.ipspace.net/2025/12/netlab-configuration-translator/?utm_source=atom_feed", "published_at": "2025-12-01T06:30:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060dea7186", "title": "Fun Reading: From XML to LLMs", "url": "https://blog.ipspace.net/2025/11/worth-reading-xml-to-llm/?utm_source=atom_feed", "published_at": "2025-11-29T06:53:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060e9228f6", "title": "Lab: IS-IS Route Redistribution", "url": "https://blog.ipspace.net/2025/11/isis-route-redistribution/?utm_source=atom_feed", "published_at": "2025-11-28T06:45:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060eb89c3e", "title": "OSPFv3 Router ID Documentation on Arista EOS", "url": "https://blog.ipspace.net/2025/11/arista-eos-ospfv3-router-id/?utm_source=atom_feed", "published_at": "2025-11-27T06:27:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060fa41f0e", "title": "Testing IP Multicast with netlab", "url": "https://blog.ipspace.net/2025/11/worth-reading-netlab-multicast/?utm_source=atom_feed", "published_at": "2025-11-26T06:56:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65060fbc6e5f", "title": "Multi-Pod EVPN Troubleshooting: Route Targets", "url": "https://blog.ipspace.net/2025/11/evpn-multi-pod-tshoot-rt/?utm_source=atom_feed", "published_at": "2025-11-25T05:49:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-6506107cf5d3", "title": "IOS/XR Route Redistribution Configuration Mess", "url": "https://blog.ipspace.net/2025/11/iosxr-redistribute-config-mess/?utm_source=atom_feed", "published_at": "2025-11-24T06:43:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650610dade2f", "title": "Building VXLAN/EVPN Data Center Lab with netlab", "url": "https://blog.ipspace.net/2025/11/worth-reading-netlab-vxlan-evpn/?utm_source=atom_feed", "published_at": "2025-11-20T06:56:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-65061148533e", "title": "Interesting: an MCP Agent for Link-State Routing Protocols", "url": "https://blog.ipspace.net/2025/11/mcp-agent-link-state-protocols/?utm_source=atom_feed", "published_at": "2025-11-19T06:15:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650612282452", "title": "Multi-Pod EVPN Troubleshooting: Fixing Next Hops", "url": "https://blog.ipspace.net/2025/11/evpn-multi-pod-tshoot-example/?utm_source=atom_feed", "published_at": "2025-11-18T06:27:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650612b84942", "title": "AI Enshittification: Swiss Airlines Edition", "url": "https://blog.ipspace.net/2025/11/swiss-airlines-ai-enshittification/?utm_source=atom_feed", "published_at": "2025-11-17T07:00:00+00:00" }, { "id": "01a0874b-e029-73d2-a286-650612d5567e", "title": "Using netlab for Classroom Training with Sander Steffann", "url": "https://blog.ipspace.net/2025/11/using-netlab-ipv6-training/?utm_source=atom_feed", "published_at": "2025-11-14T06:17:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c6fc110c", "title": "netlab 25.11: SRv6 on IOS/XE, Streamlined Graphs and Reports", "url": "https://blog.ipspace.net/2025/11/netlab-25-11/?utm_source=atom_feed", "published_at": "2025-11-13T09:02:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c73afb31", "title": "Worth Reading: The Majority AI View", "url": "https://blog.ipspace.net/2025/11/worth-reading-majority-ai-view/?utm_source=atom_feed", "published_at": "2025-11-12T07:06:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c772fab7", "title": "One-Arm Hub-and-Spoke VPN on Arista EOS", "url": "https://blog.ipspace.net/2025/11/one-arm-hub-spoke-vpn-arista-eos/?utm_source=atom_feed", "published_at": "2025-11-11T06:28:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c828b209", "title": "netlab: Test IPv6 IGP Deployment", "url": "https://blog.ipspace.net/2025/11/netlab-igp-ipv6-deployment/?utm_source=atom_feed", "published_at": "2025-11-10T06:45:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c8560aaf", "title": "Lab: Adjust IS-IS Timers", "url": "https://blog.ipspace.net/2025/11/isis-lab-timers/?utm_source=atom_feed", "published_at": "2025-11-07T06:37:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c94a7651", "title": "Presentation: Testing Disaster Recovery Designs", "url": "https://blog.ipspace.net/2025/11/testing-dr-designs/?utm_source=atom_feed", "published_at": "2025-11-06T07:09:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c94bfeee", "title": "Worth Reading: AI Won't Replace Network Engineers", "url": "https://blog.ipspace.net/2025/11/worth-reading-ai-replace-network-engineers/?utm_source=atom_feed", "published_at": "2025-11-05T07:38:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c955ca0b", "title": "The Curious Case of Default OSPF Interface Timers", "url": "https://blog.ipspace.net/2025/11/ospf-interface-timers/?utm_source=atom_feed", "published_at": "2025-11-04T06:14:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c978ef77", "title": "Ansible Release 12: the Windows Vista Moment", "url": "https://blog.ipspace.net/2025/11/ansible-12-different/?utm_source=atom_feed", "published_at": "2025-11-03T06:44:00+00:00" }, { "id": "01a0874b-e02a-70b8-8ec3-ca78c9c41570", "title": "New Project: Open-Source VXLAN/EVPN Labs", "url": "https://blog.ipspace.net/2025/10/vxlan-evpn-labs/?utm_source=atom_feed", "published_at": "2025-10-30T07:11:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b5c7acd5", "title": "Worth Reading: AI for Network Managers", "url": "https://blog.ipspace.net/2025/10/worth-reading-ai-network-managers/?utm_source=atom_feed", "published_at": "2025-10-29T06:34:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b62c62cd", "title": "OMG: Automatic OSPFv3 Router ID on Cisco IOS", "url": "https://blog.ipspace.net/2025/10/ospf-automatic-router-id/?utm_source=atom_feed", "published_at": "2025-10-28T06:52:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b6c5afc3", "title": "Adding a Syslog Server to a netlab Lab Topology", "url": "https://blog.ipspace.net/2025/10/netlab-syslog-server/?utm_source=atom_feed", "published_at": "2025-10-27T06:23:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b76c2a8d", "title": "DEEP Is Still a Must-Attend Boutique Conference", "url": "https://blog.ipspace.net/2025/10/deep-conference-2025/?utm_source=atom_feed", "published_at": "2025-10-24T05:54:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b799d02f", "title": "Lab: Drain Traffic From an IS-IS Node Before Starting Maintenance", "url": "https://blog.ipspace.net/2025/10/isis-lab-overload-maintenance/?utm_source=atom_feed", "published_at": "2025-10-23T05:09:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b81cb620", "title": "OSPF Router ID and Loopback Interface Myths", "url": "https://blog.ipspace.net/2025/10/ospf-routerid-loopback-interface-myths/?utm_source=atom_feed", "published_at": "2025-10-21T06:14:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b83e18ec", "title": "netlab: Embed Files in a Lab Topology", "url": "https://blog.ipspace.net/2025/10/netlab-embedded-files/?utm_source=atom_feed", "published_at": "2025-10-20T07:45:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b888387d", "title": "Lab: Hide Transit Subnets in IS-IS Networks", "url": "https://blog.ipspace.net/2025/10/isis-lab-hide-transit/?utm_source=atom_feed", "published_at": "2025-10-17T05:46:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b920009e", "title": "EVPN Designs: Multi-Pod with IP-Only WAN Routers", "url": "https://blog.ipspace.net/2025/10/evpn-designs-inter-as-c/?utm_source=atom_feed", "published_at": "2025-10-15T06:12:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b927c9ac", "title": "Why Can't We Have Good Documentation", "url": "https://blog.ipspace.net/2025/10/shoddy-documentation/?utm_source=atom_feed", "published_at": "2025-10-14T05:51:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b9593848", "title": "netlab: Embed Configuration Templates in a Lab Topology File", "url": "https://blog.ipspace.net/2025/10/netlab-configlets/?utm_source=atom_feed", "published_at": "2025-10-13T06:30:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b9741513", "title": "netlab 25.10: Cisco 8000v, Nicer Graphs", "url": "https://blog.ipspace.net/2025/10/netlab-25-10/?utm_source=atom_feed", "published_at": "2025-10-10T07:02:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b9772efb", "title": "Troubleshooting Multi-Pod EVPN: Overview", "url": "https://blog.ipspace.net/2025/10/troubleshoot-multi-pod-evpn/?utm_source=atom_feed", "published_at": "2025-10-09T06:27:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9b9d07e57", "title": "Changes in ipSpace.net RSS Feeds", "url": "https://blog.ipspace.net/2025/10/changes-rss-feeds/?utm_source=atom_feed", "published_at": "2025-10-08T04:40:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9babbb651", "title": "Working for a Vendor with David Gee", "url": "https://blog.ipspace.net/2025/10/working-for-vendor-david-gee/?utm_source=atom_feed", "published_at": "2025-10-07T06:23:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9baeedfe5", "title": "Spaghetti Pasta Networking", "url": "https://blog.ipspace.net/2025/10/spaghetti-pasta-networking/?utm_source=atom_feed", "published_at": "2025-10-06T06:15:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bb6fe036", "title": "Using BIRD BGP Daemon as a BGP Route Reflector", "url": "https://blog.ipspace.net/2025/10/bgp-labs-bird-rr/?utm_source=atom_feed", "published_at": "2025-10-03T05:51:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bc692f00", "title": "netlab: Applying Simple Configuration Changes", "url": "https://blog.ipspace.net/2025/10/netlab-simple-configuration-changes/?utm_source=atom_feed", "published_at": "2025-10-02T08:19:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bcdaa98c", "title": "EVPN Designs: Multi-Pod Fabrics", "url": "https://blog.ipspace.net/2025/10/evpn-designs-multi-pod/?utm_source=atom_feed", "published_at": "2025-10-01T05:59:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bd18b169", "title": "Changing the Layout of netlab Topology Graphs", "url": "https://blog.ipspace.net/2025/09/netlab-graphs-layout/?utm_source=atom_feed", "published_at": "2025-09-30T05:26:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bd42155e", "title": "Android Phones Might Ask for /64 Delegated Prefix", "url": "https://blog.ipspace.net/2025/09/android-dhcpv6-prefix-delegation/?utm_source=atom_feed", "published_at": "2025-09-29T05:43:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bd5861eb", "title": "Lab: Protect IS-IS Routing Data with MD5 Authentication", "url": "https://blog.ipspace.net/2025/09/isis-lab-authenticate/?utm_source=atom_feed", "published_at": "2025-09-26T05:40:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bdcda9cf", "title": "Start a Lab From a GitHub netlab Topology File", "url": "https://blog.ipspace.net/2025/09/netlab-download-url/?utm_source=atom_feed", "published_at": "2025-09-24T05:37:00+00:00" }, { "id": "01a0874b-e02b-708a-b13b-55d9bdd59cb6", "title": "SwiNOG 40: Deploying Precision Time Protocol across WAN", "url": "https://blog.ipspace.net/2025/09/swinog40-ptp-wan/?utm_source=atom_feed", "published_at": "2025-09-23T05:33:00+00:00" } ] posts Claim your blog

Back to blog.ipspace.net

Blog · corpus.blog/blogs/blog.ipspace.net/posts

blog.ipspace.net

blog.ipspace.net

2026

netlab Graphs with Multi-Access Links original ↗

16 Mar 2026

Network Device Telemetry Protocols with Dinesh Dutt original ↗

13 Mar 2026

IPv4 ECMP Works on Arista cEOS Release 4.35.2F original ↗

12 Mar 2026

Dynamic Path MTU Discovery in Cloudflare One Client original ↗

11 Mar 2026

netlab 26.03: EVPN/MPLS, IOS XR Features original ↗

10 Mar 2026

Automating netlab-Based Cisco SD-WAN Deployment original ↗

9 Mar 2026

Presentation: netlab Overview and Use Cases (NetBCN)original ↗

5 Mar 2026

The Tale of Two EVPN/MPLS Encapsulations original ↗

4 Mar 2026

Worth Reading: Faster than Dijkstra?original ↗

3 Mar 2026

netlab: Using L3VPN (MPLS/VPN) with SR-MPLS Core original ↗

2 Mar 2026

Lab: More Complex EVPN/VXLAN Bridging Scenario original ↗

27 Feb 2026

Configuring 6PE Route Reflector on Cisco IOS original ↗

26 Feb 2026

On AI Agents Speaking BGP original ↗

25 Feb 2026

Interesting: Open Space Events original ↗

24 Feb 2026

netlab: The Caveats of Using Startup Configurations original ↗

23 Feb 2026

Cisco IOS/XR OSPFv2 Not-So-Passive Interfaces original ↗

19 Feb 2026

EVPN IP-VRFs on Cisco IOS/XE: Configuration Notes original ↗

18 Feb 2026

Worth Reading: Modern Forwarding Architectures original ↗

17 Feb 2026

Explore Configurations of Unfamiliar Devices with netlab original ↗

16 Feb 2026

Lab: Build an SR-MPLS Network with IS-IS original ↗

13 Feb 2026

EVPN on Cisco IOS/XE: Configuration Notes original ↗

12 Feb 2026

netlab 26.02: KinD support, more EVPN/VXLAN original ↗

11 Feb 2026

Open-Source Network Simulators (2026 Edition)original ↗

10 Feb 2026

Fast Arista cEOS Container Configuration original ↗

9 Feb 2026

Lab: Routing Between VXLAN Segments original ↗

6 Feb 2026

On MPLS Forwarding Performance Myths original ↗

5 Feb 2026

OMG, After a Decade, VXLAN Is Still Insecure original ↗

4 Feb 2026

Interface MAC Address in IOS Layer-2 Images original ↗

3 Feb 2026

Fast FRR Container Configuration original ↗

2 Feb 2026

Opinion: Impact of AI on Networking Engineers original ↗

29 Jan 2026

Worth Reading: A Tech Career in 2026 original ↗

28 Jan 2026

Lab: VXLAN Bridging with EVPN Control Plane original ↗

27 Jan 2026

Deploy Partially-Configured Training Labs with netlab original ↗

26 Jan 2026

MUST WATCH: BGP: the First 18 Years original ↗

23 Jan 2026

Why Doesn't netlab Use X for Device Configuration Templates?original ↗

22 Jan 2026

Lab: Distributing Level-2 IS-IS Routes into Level-1 Areas original ↗

21 Jan 2026

On MPLS Paths, Tunnels and Interfaces original ↗

20 Jan 2026

How Moving Away from Ansible Made netlab Faster original ↗

19 Jan 2026

Infrahub with Damien Garros original ↗

16 Jan 2026

Using netlab to Set Up Demos original ↗

15 Jan 2026

Do You Need IS-IS Areas?original ↗

14 Jan 2026

netlab 26.01: EVPN for VXLAN-over-IPv6, Netscaler original ↗

13 Jan 2026

2025

Happy Holidays and All the Best in 2026!original ↗

19 Dec 2025

Hilarious: HTTP Status Codes as Pizza Images original ↗

17 Dec 2025

Has Ansible Team Abandoned Network Automation?original ↗

16 Dec 2025

Underscores (in Hostnames) Strike Again original ↗

15 Dec 2025

Lab: Multilevel IS-IS Deployments original ↗

12 Dec 2025

IETF v6ops Working Group with Nick Buraglio original ↗

11 Dec 2025

Evergreen: The Big Ball of Mud original ↗

10 Dec 2025

netlab 25.12: Cisco IOS/XR Configuration Modules, More VXLAN Goodies original ↗

8 Dec 2025

Lab: More Complex VXLAN Deployment Scenario original ↗

5 Dec 2025

Technical Writing: Lower Your Expectations original ↗

4 Dec 2025

Worth Watching: AI/ML Data Center Design original ↗

3 Dec 2025

Multi-Pod EVPN Troubleshooting: Extended BGP Communities original ↗

2 Dec 2025

netlab as the Universal Configuration Translator original ↗

1 Dec 2025

Fun Reading: From XML to LLMs original ↗

29 Nov 2025

Lab: IS-IS Route Redistribution original ↗

28 Nov 2025

OSPFv3 Router ID Documentation on Arista EOS original ↗

27 Nov 2025

Testing IP Multicast with netlab original ↗

26 Nov 2025

Multi-Pod EVPN Troubleshooting: Route Targets original ↗

25 Nov 2025

IOS/XR Route Redistribution Configuration Mess original ↗

24 Nov 2025

Building VXLAN/EVPN Data Center Lab with netlab original ↗

20 Nov 2025

Interesting: an MCP Agent for Link-State Routing Protocols original ↗

19 Nov 2025

Multi-Pod EVPN Troubleshooting: Fixing Next Hops original ↗

18 Nov 2025

AI Enshittification: Swiss Airlines Edition original ↗

17 Nov 2025

Using netlab for Classroom Training with Sander Steffann original ↗

14 Nov 2025

netlab 25.11: SRv6 on IOS/XE, Streamlined Graphs and Reports original ↗

13 Nov 2025

Worth Reading: The Majority AI View original ↗

12 Nov 2025

One-Arm Hub-and-Spoke VPN on Arista EOS original ↗

11 Nov 2025

netlab: Test IPv6 IGP Deployment original ↗

10 Nov 2025

Lab: Adjust IS-IS Timers original ↗

7 Nov 2025

Presentation: Testing Disaster Recovery Designs original ↗

6 Nov 2025

Worth Reading: AI Won't Replace Network Engineers original ↗

5 Nov 2025

The Curious Case of Default OSPF Interface Timers original ↗

4 Nov 2025

Ansible Release 12: the Windows Vista Moment original ↗

3 Nov 2025

New Project: Open-Source VXLAN/EVPN Labs original ↗

30 Oct 2025

Worth Reading: AI for Network Managers original ↗

29 Oct 2025

OMG: Automatic OSPFv3 Router ID on Cisco IOS original ↗

28 Oct 2025

Adding a Syslog Server to a netlab Lab Topology original ↗

27 Oct 2025

DEEP Is Still a Must-Attend Boutique Conference original ↗

24 Oct 2025

Lab: Drain Traffic From an IS-IS Node Before Starting Maintenance original ↗

23 Oct 2025

OSPF Router ID and Loopback Interface Myths original ↗

21 Oct 2025

netlab: Embed Files in a Lab Topology original ↗

20 Oct 2025

Lab: Hide Transit Subnets in IS-IS Networks original ↗

17 Oct 2025

EVPN Designs: Multi-Pod with IP-Only WAN Routers original ↗

15 Oct 2025

Why Can't We Have Good Documentation original ↗

14 Oct 2025

netlab: Embed Configuration Templates in a Lab Topology File original ↗

13 Oct 2025

netlab 25.10: Cisco 8000v, Nicer Graphs original ↗

10 Oct 2025

Troubleshooting Multi-Pod EVPN: Overview original ↗

9 Oct 2025

Changes in ipSpace.net RSS Feeds original ↗

8 Oct 2025

Working for a Vendor with David Gee original ↗

7 Oct 2025

Spaghetti Pasta Networking original ↗

6 Oct 2025

Using BIRD BGP Daemon as a BGP Route Reflector original ↗

3 Oct 2025

netlab: Applying Simple Configuration Changes original ↗

2 Oct 2025

EVPN Designs: Multi-Pod Fabrics original ↗

1 Oct 2025

Changing the Layout of netlab Topology Graphs original ↗

30 Sept 2025

Android Phones Might Ask for /64 Delegated Prefix original ↗

29 Sept 2025

Lab: Protect IS-IS Routing Data with MD5 Authentication original ↗

26 Sept 2025

Start a Lab From a GitHub netlab Topology File original ↗

24 Sept 2025

SwiNOG 40: Deploying Precision Time Protocol across WAN original ↗

23 Sept 2025