Everything tagged netlab, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
In NetworkAutoMagic episode 11, Steinn Bjarnarson and Urs Baumann discuss netlab, the complexities of ACL and QoS, and AI-generated device configuration challenges, with extensive notes and a YouTube option available.
Ali Bahadır Coşkun advanced his EVPN/VXLAN skills using free netlab-powered labs, completing both basic and advanced VXLAN/IRB/anycast configurations.
The Cisco DevNet channel's interview with Suresh Vina on "Getting Started with netlab" has boosted netlab.tools documentation visits, surpassing ipspace.net blog traffic for the first time.
The author reflects on the rapid passage of time with age, encourages taking a break from work, and hints at sharing some light content related to netlab and interesting links.
Ali Bahadır Coşkun detailed his experience mastering VLAN extension using static VXLAN with free netlab-powered labs, which include various VXLAN and EVPN exercises and designs.
Leo Fleskes inquired about the potential of using netlab for live network device configuration, which, while theoretically possible, may encounter practical challenges.
A netlab user effectively utilized its multi-vendor capabilities to resolve a vendor TAC dispute after a configuration change caused a data center network outage.
The latest netlab release 26.05 no longer supports Python 3.8, affecting installations on Ubuntu 20.04, which has ended standard support.
The second demo at the Segment Routing workshop demonstrated the simplicity of setting up a small SR-MPLS network using netlab, featuring a three-router topology to illustrate true label visibility beyond penultimate-hop popping.
At ITNOG 10, a mini-Interop-style lab showcased a complex network setup with diverse vendor devices, suggesting the use of netlab for efficient IP addressing and configuration.
The blog post by @sjhloco provides an in-depth guide on using containerlab and netlab for lab management, highlighting some netlab issues which were later addressed in release 26.04.
The author occasionally finds bugs in FRRouting, which are quickly addressed by developers, and testing fixes is simplified using netlab with an existing topology file.
Recent updates to online BGP labs enhance device flexibility, allowing various network operating systems as external routers, but limitations remain in configuring all BGP features, especially with unsupported devices, which may cause lab failures.
Milan Zapletal has authored an article introducing Netlab, explaining its significance for network engineers, and showcasing a comprehensive netlab topology.
The SR Linux release 26.03 brought expected configuration changes, but thanks to Miguel Redondo's template fixes and Roman Dodin's tool, users can easily adapt to these updates.
Netlab users aiming to replicate their physical network topology in a virtual lab face challenges with interface naming, but can specify interface ifindex to align virtual and physical network interfaces.
Frequent SSH session disconnections on a laptop cause inconvenience in tracking lab work, but the `netlab status --all` command helps by listing all running labs and their directories.
A netlab user sought to create an attractive topology graph for a simple network connecting several devices to a broadcast link, using GraphViz for visualization.
Sebastien d’Argoeuves created an independent solution to automate Cisco SD-WAN deployment using standardized files, complementing netlab's capabilities without vendor-specific feature support.
During the NetBCN event, a presentation on netlab use cases highlighted various applications, including rapid prototyping and testing network automation, with details available on ipSpace.net.
The article discusses building an MPLS/VPN lab using netlab with an SR-MPLS core, utilizing Arista EOS and Linux containers, and provides a lab topology available on GitHub.
This content invites readers to spend time configuring SR-MPLS with IS-IS for a BGP-free core using a netlab environment or GitHub Codespaces.
Brian Linkletter's updated overview highlights containerlab and GNS3 as leading open-source network simulators, suggesting a shift towards netlab with containerlab and phasing out Vagrant support due to licensing issues.
The lab exercise advances from basic VXLAN Ethernet bridging to routing between VXLAN segments using unique unicast IP addresses on layer-3 switches, with options to run the lab on various platforms including netlab, GitHub Codespace, or Apple-silicon Mac.
The infrastructure generating device configuration files in netlab was expanded to configure FRR containers using bash scripts for data-plane features and vtysh for control-plane features, with plans to replace both with Linux scripts executed via docker exec.
Netlab can be used to create training labs where students configure devices like RTR in a pre-configured environment, enhancing self-study and classroom training experiences.
The latest netlab release improves configuration efficiency by directly executing bash scripts for Linux containers, bypassing Ansible playbooks, which is beneficial for larger topologies.
David Gee successfully set up a demo network using netlab on an Ubuntu VM with Arista cEOS containers on his Apple Silicon laptop, praising its efficiency and Ivan's supportive approach.
The netlab Release 26.01 introduces a rewritten device configuration file generation process, no longer relying on Ansible Jinja2, and includes new features like EVPN for VXLAN-over-IPv6, a 'skip_config' node attribute, a lightweight netlab API HTTP server, and basic Citrix Netscaler support.
Reflecting on the fast pace of time and technological trends, the author emphasizes prioritizing loved ones and shares updates on transitioning netlab from a specific automation tool, with progress available on GitHub and results expected in January.
Allowing underscores in netlab node names may cause issues due to non-compliance with ancient RFCs, despite their initial compatibility with recommended Linux distributions.
Dan Partelly, a netlab user and contributor, highlights netlab's dual functionality as both a lab management solution and a translator, capable of abstracting devices and generating configurations for unfamiliar platforms and technologies.
Dmitry Klepcha's document guides users through building data center fabric labs with netlab, from basic IP networks to advanced EVPN/VXLAN setups, with accessible GitHub resources.
The author's initial experience with Ansible release 12 was problematic due to issues with Jinja2 filters in netlab templates, leading to a temporary workaround and a challenging attempt to adapt to the new release.
Although netlab doesn't support a Syslog server, adding one is straightforward using the Rsyslog team's ready-to-run container, specifically the rsyslog-collector, which logs messages via UDP, TCP, and optionally RELP.
Netlab release 25.09 introduces custom configuration templates for applying the same commands across multiple devices, enhancing configuration efficiency beyond the previous config.inline functionality.
Arista's cEOS EFT image now runs on Arm architecture, and it can be successfully tested on Apple Silicon using netlab on an Ubuntu VM.
The recent netlab release 1.9.4 includes numerous bug fixes and improvements, passing extensive integration tests, and is recommended over previous versions.
Netlab aims to create concise lab topologies by supporting various methods for defining links between devices, organizing them into a structured list for data transformation.
Create a simple multi-site network using netlab with two sites, each having a layer-3 switch, VLAN 100, and two hosts, connected by a layer-3 IPv4 link.
A blog post discusses the benefits and criticisms of using netlab for network topology setup, addressing various misconceptions in a public forum.
The author plans a year-end retreat, encourages disconnecting from work, and hints at new netlab features in January.
GitHub Codespaces enables efficient setup of network labs like netlab, BGP, and IS-IS, with detailed insights available in Julio Perez's deep dive.
Urs Baumann demonstrated netlab's capabilities with a 10-router topology using OSPF, IS-IS, and BGP, inspiring others to create similar setups.
The netlab release 1.9.2 includes bug fixes and new features like spanning tree, link aggregation modules, and support for Edgeshark and Cisco IOS on Linux.
Netlab automatically creates VLANs and their interfaces on lab devices when used on access or trunk links, or specified in node VLAN dictionaries, with customizable parameters for IRB VLANs.
Netlab, a CLI orchestration tool for Vagrant and Containerlab, does not automatically handle server reboots, power failures, or crashes.
Creating custom netlab reports is straightforward, allowing users to define reports for specific needs like VRF tables in labs.
A short guide for creating netlab reports was published in late July for your convenience and utility.
A year after launching BGP labs, the creator introduces online IS-IS configuration labs with versatile platform support.