NETWORKINGblog.ipspace.net
Worth Reading: More VXLAN and EVPN Labs
Ali Bahadır Coşkun advanced his EVPN/VXLAN skills using free netlab-powered labs, completing both basic and advanced VXLAN/IRB/anycast configurations.
evpn53 items
Everything tagged evpn, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
MON, 06 JUL 2026
WED, 01 JUL 2026
NETWORKINGblog.ipspace.net
Worth Checking: EVPN Centralized Anycast Gateway
Daniel Blažek explored Arista EOS centralized anycast gateway functionality with IPv6 underlay, sharing device configurations and a containerlab topology on GitHub for easy lab setup.
WED, 24 JUN 2026
NETWORKINGnetworkphil.com
EVPN Active-Active Multihoming in Data Center Fabrics
EVPN introduces native active-active multihoming, enhancing data center network design by offering a vendor-neutral alternative to traditional dual-homing technologies like vPC and MLAG.
NETWORKINGblog.ipspace.net
Anycast-Only Gateways in EVPN Asymmetric IRB
The blog post explores the functionality of ARP in an EVPN asymmetric IRB environment where PE devices utilize only an anycast MAC/IP address for packet forwarding.
THU, 18 JUN 2026
NETWORKINGblog.ipspace.net
Worth Reading: Extending a VLAN with Static VXLAN
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.
WED, 17 JUN 2026
NETWORKINGnetworkphil.com
The Five EVPN Route Types in VXLAN Data Center Fabrics
Modern enterprise and cloud data centers widely use BGP, EVPN, and VXLAN to create scalable network fabrics, with EVPN serving as the preferred control plane for endpoint reachability distribution.
NETWORKINGblog.ipspace.net
ARP with Anycast Gateways in EVPN Asymmetric IRB
The blog discusses ARP issues in EVPN environments, highlighting centralized routing and asymmetric IRB challenges, and explores the popularity and variations of anycast gateways, including active-active VRRP and shared MAC+IP configurations.
WED, 03 JUN 2026
NETWORKINGblog.ipspace.net
EVPN Centralized Routing with Arista EOS
The article discusses EVPN centralized routing design issues, focusing on ARP challenges and Arista EOS routing implementations using a simple lab topology with a spine switch as a router and leaf switches as layer-2 switches.
FRI, 29 MAY 2026
NETWORKINGpacketpushers.net
HN829: EVPN/VXLAN Vs. TradCore
Drew and Ethan discuss with Tony Bourke the considerations for selecting between TradCore and EVPN VXLAN for network design, focusing on scale, redundancy, operational complexity, and workload mobility.
WED, 27 MAY 2026
NETWORKINGblog.ipspace.net
SR Linux MPLS/VPN Configuration Notes
After updating the SR Linux LDP configuration template, MPLS/VPN was added to the netlab SR Linux MPLS features, but unexpected complexities arose despite the seemingly straightforward process.
FRI, 15 MAY 2026
NETWORKINGblog.ipspace.net
Lab: EVPN Asymmetric IRB with Anycast Gateways
The blog discusses ARP issues with EVPN anycast gateways, providing a lab exercise to extend VLANs into MAC-VRF instances with IRB and anycast gateways, runnable on various platforms including netlab-enabled infrastructure and GitHub Codespaces.
THU, 14 MAY 2026
NETWORKINGblog.ipspace.net
ARP with EVPN Asymmetric IRB
The blog post discusses ARP issues in centralized routing for EVPN MAC-VRF instances and introduces asymmetric Integrated Routing and Bridging (IRB) to explain packet forwarding behavior.
THU, 07 MAY 2026
NETWORKINGblog.ipspace.net
On ARP and MAC Aging Timers
Naveen Kumar Devaraj highlights that Arista's EOS default ARP timeout is 4 hours and MAC aging is 5 minutes, a configuration not unique to Arista, prompting curiosity about the origin of these defaults.
TUE, 05 MAY 2026
NETWORKINGblog.ipspace.net
ARP Issues in EVPN Centralized Routing Design
Integrating IRB into EVPN MAC-VRFs, or stretched VLANs, involves adding IP addresses and possibly a shared anycast gateway, but poses challenges in multi-vendor environments, as discovered during EVPN lab exercises and integration tests.
WED, 29 APR 2026
NETWORKINGblog.ipspace.net
On Generating EVPN MAC/IP Routes
Naveen Kumar Devaraj identified that Arista EOS generates MAC-IP routes with and without IP addresses, doubling the EVPN BGP table size, and shared insights via a LinkedIn comment.
FRI, 17 APR 2026
NETWORKINGblog.ipspace.net
Lab: Integrated Routing and Bridging (IRB) with EVPN MAC-VRF Instances
The lab exercise focuses on understanding EVPN by gradually exploring the addition of IP addresses to VLAN interfaces in EVPN MAC-VRF instances, with practical setups available on various platforms.
WED, 15 APR 2026
NETWORKINGnetworkphil.com
Rail-Optimized Networking for AI Training Workloads
Clos-based leaf-spine architectures have dominated data center networking for their scalability and integration capabilities, but large-scale AI training reveals their limitations.
WED, 08 APR 2026
NETWORKINGblog.ipspace.net
Interoperability of EVPN/VXLAN with IPv6 Next Hops
FRRouting release 10.6 introduced BGP IPv6 VTEP support for EVPN deployments, but compatibility issues arose with Arista EOS in a test setup.
FRI, 20 MAR 2026
NETWORKINGblog.ipspace.net
Lab: Anycast Gateways on VXLAN Segments
Anycast gateways, initially discovered during MAC-VRF routing in EVPN environments, have long been supported by vendors like Arista on VLAN segments and are now extended to VXLAN segments, with lab exercises available on various platforms.
TUE, 10 MAR 2026
NETWORKINGblog.ipspace.net
netlab 26.03: EVPN/MPLS, IOS XR Features
The netlab release 26.03 introduces significant enhancements including new Cisco IOS XR features, Juniper cRPD support, EVPN/VXLAN on Juniper, OpenBSD BGP support, and SR-MPLS for OSPFv2 across multiple platforms.
WED, 04 MAR 2026
NETWORKINGblog.ipspace.net
The Tale of Two EVPN/MPLS Encapsulations
The EVPN/MPLS netlab integration tests involve testing a PE-device against a known working device, adding a P-router, attaching hosts, and validating sessions before conducting end-to-end pings.
FRI, 27 FEB 2026
NETWORKINGblog.ipspace.net
Lab: More Complex EVPN/VXLAN Bridging Scenario
The lab exercise involves configuring multiple EVPN MAC-VRFs mapped to different VLAN segments on individual PE-devices, with options to run it on various platforms like netlab, GitHub Codespace, or Apple-silicon Macs.
FRI, 20 FEB 2026
NETWORKINGblog.ipspace.net
Public Videos: EVPN in MPLS-Based Environments
EVPN, initially used as an alternative control plane for MPLS networks, is now often discussed with VXLAN encapsulation, and related educational videos are publicly available for deeper understanding.
WED, 18 FEB 2026
NETWORKINGblog.ipspace.net
EVPN IP-VRFs on Cisco IOS/XE: Configuration Notes
The author shares their experience with configuring EVPN MAC-VRFs on Cisco IOS/XE and successfully implementing IP-VRFs with transit VXLAN segments, highlighting the challenges faced with the configuration process.
THU, 12 FEB 2026
NETWORKINGblog.ipspace.net
EVPN on Cisco IOS/XE: Configuration Notes
The blog post discusses the challenges and learnings from adding EVPN configuration templates to Cisco IOS/XE devices in netlab, inspired by the L2 Vxlan on Catalyst blog.
WED, 11 FEB 2026
NETWORKINGblog.ipspace.net
netlab 26.02: KinD support, more EVPN/VXLAN
netlab release 26.02 introduces Kubernetes (KinD) cluster support, Layer-2 EVPN/VXLAN on various platforms, enhanced graph creation, customizable core link parameters, and OSPFv3 reports, along with new container configuration methods.
FRI, 06 FEB 2026
NETWORKINGblog.ipspace.net
Lab: Routing Between VXLAN Segments
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.
TUE, 27 JAN 2026
NETWORKINGblog.ipspace.net
Lab: VXLAN Bridging with EVPN Control Plane
The content discusses integrating the EVPN control plane with existing VXLAN setups, maintaining the data plane while using EVPN for ingress replication and MAC-to-VTEP mappings.
TUE, 13 JAN 2026
NETWORKINGblog.ipspace.net
netlab 26.01: EVPN for VXLAN-over-IPv6, Netscaler
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.
MON, 12 JAN 2026
NETWORKINGpacketpushers.net
NB557: Meta Goes Nuclear; Arista Taps EVPN VXLAN for Massive Mobility Domains
The latest Network Break episode covers an emergency Cisco ISE patch, Arista's new product announcements including wireless deployment capabilities, and other significant tech news updates.
FRI, 09 JAN 2026
NETWORKINGpacketpushers.net
HN809: EVPN All the Things!
The Packet Pushers podcast, featuring Jeff McAdams, explores the extensive applications of EVPN/VXLAN in data centers, emphasizing its growing importance and versatility over the past decade.
FRI, 05 DEC 2025
NETWORKINGblog.ipspace.net
Lab: More Complex VXLAN Deployment Scenario
The VXLAN lab explores essential concepts such as VTEP configurations, VNI uniqueness, and VLAN ID mapping to enhance understanding before delving into EVPN control planes.
TUE, 02 DEC 2025
NETWORKINGblog.ipspace.net
Multi-Pod EVPN Troubleshooting (Part 3)
The blog post discusses troubleshooting issues in a multi-pod EVPN fabric, focusing on fixing mismatched route targets to ensure proper VTEP visibility between PE devices, particularly addressing problems in Site-B (AS 65002).
TUE, 25 NOV 2025
NETWORKINGblog.ipspace.net
Multi-Pod EVPN Troubleshooting (Part 2)
In the fourth installment of the Multi-Pod EVPN series, the focus is on resolving issues with remote VTEP visibility for ingress replication after fixing BGP next hops in a multi-pod EVPN fabric.
FRI, 21 NOV 2025
NETWORKINGblog.ipspace.net
Public Videos: Bridging with EVPN
The EVPN webinar featuring Dinesh Dutt, covering Data Center and Bridging with EVPN, is now accessible without an ipSpace.net account.
THU, 20 NOV 2025
NETWORKINGblog.ipspace.net
Building VXLAN/EVPN Data Center Lab with netlab
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.
TUE, 18 NOV 2025
NETWORKINGblog.ipspace.net
Example: Multi-Pod EVPN Troubleshooting (Part 1)
The article explores troubleshooting multi-pod EVPN designs by intentionally breaking network elements within a lab topology featuring two interconnected sites, each with a spine and leaf switch.
THU, 30 OCT 2025
NETWORKINGblog.ipspace.net
New Project: Open-Source VXLAN/EVPN Labs
In 2024, BGP Labs launched open-source VXLAN/EVPN labs, starting with a lab exercise on extending a VLAN segment using VXLAN encapsulation.
WED, 15 OCT 2025
NETWORKINGblog.ipspace.net
EVPN Designs: Multi-Pod with IP-Only WAN Routers
The multi-pod EVPN design merges two EVPN fabrics into one, utilizing OSPF, IBGP, and EBGP sessions, with a shift towards simpler WAN edge routers supporting only IP forwarding.
THU, 09 OCT 2025
NETWORKINGblog.ipspace.net
Troubleshooting Multi-Pod EVPN
The article addresses troubleshooting VTEP connectivity issues across pods in a multi-pod EVPN setup by applying the "divide and conquer" strategy, recognizing VXLAN/EVPN as an application over IP.
FRI, 18 JUL 2025
NETWORKINGpacketpushers.net
HN788: Behind Megaport’s Network Automation Platform (Sponsored)
At the AutoCon3 conference, Luke Gollan discussed Megaport's challenging network automation project transitioning from a legacy VXC overlay to an EVPN framework to enhance scalability.
TUE, 08 JUL 2025
NETWORKINGwww.cleartosend.net
CTS 363: Mobility Field Day 13 – Arista Networks
Arista Networks is revolutionizing campus networking with innovative solutions like multifunction radios and VESPA, attracting enterprises seeking simplicity, intelligence, and enhanced security in their network infrastructure.
THU, 13 MAR 2025
NETWORKINGpacketpushers.net
N4N017: Routing Fundamentals
The podcast "N Is For Networking" delves into routing fundamentals, emphasizing the importance of understanding layer 3 concepts like routers, routing tables, and protocols before advancing to VXLAN and EVPN.
MON, 25 NOV 2024
NETWORKINGblog.ipspace.net
EVPN Designs: EVPN IBGP over IPv4 EBGP
The article discusses a creative EVPN design using IBGP sessions over EBGP, highlighting the challenge of differing autonomous system assumptions and the solution of using BGP local AS functionality.
TUE, 29 OCT 2024
NETWORKINGblog.ipspace.net
EVPN Designs: EVPN EBGP over IPv4 EBGP
The blog post introduces an advanced EVPN design, EBGP-over-EBGP, highlighting vendor strategies to enhance existing technologies while maintaining a modern appearance.
TUE, 08 OCT 2024
NETWORKINGblog.ipspace.net
EVPN Designs: EBGP Everywhere
Exploring the use of EBGP for EVPN in data center fabrics reveals its potential benefits and dependencies compared to IGP.
TUE, 01 OCT 2024
NETWORKINGblog.ipspace.net
Repost: Layer-3-Only EVPN Behind the Scenes
In August, detailed instructions and a deep dive into EVPN Layer 3 VPN and data-plane structures were published.
FRI, 20 SEPT 2024
NETWORKINGblog.ipspace.net
Repost: Building Layer-3-Only EVPN Lab
In August, step-by-step instructions were published for a lab exploring pure L3VPN implementation using an EVPN control plane.
THU, 19 SEPT 2024
NETWORKINGblog.ipspace.net
Custom netlab Reports
Creating custom netlab reports is straightforward, allowing users to define reports for specific needs like VRF tables in labs.
WED, 18 SEPT 2024
NETWORKINGblog.ipspace.net
EVPN Hub-and-Spoke Layer-3 VPN
Implementing a hub-and-spoke VPN design with EVPN involves splitting a single PE router into multiple devices and enabling various protocols.
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