MPLS VPN on the Provider Edge
I have this example config on setting up the MPLS L3 VPN, but when configuring the VPN neighbor in the PE router, I don`t understand that why the neighbor command is required in th...
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I have this example config on setting up the MPLS L3 VPN, but when configuring the VPN neighbor in the PE router, I don`t understand that why the neighbor command is required in th...
After fixing the SR Linux LDP configuration template, I decided to add MPLS/VPN to the netlab SR Linux MPLS features. After all, the one-page recipe seemed simple enough, more so a...
<p>After the <a href="/2026/05/sr-mpls-intro/">introduction to SR-MPLS demo</a> I did during the <a href="/2026/04/sr-mpls-workshop/">Se...
<p>The <a href="https://github.com/ipspace/SR-workshop/tree/main/1-intro/2-netlab">second demo</a><a href="#fn:1" class="footnote-ref&...
Adding IRB to a EVPN MAC-VRFs (the fancy way of saying stretched VLANs) seems like a no-brainer: Add IP addresses to VLAN interfaces Optionally add a shared anycast gateway Declar...
FRRouting release 10.6 promised “BGP IPv6 VTEP support,” claiming “it enables EVPN deployments using IPv6 tunnel endpoints while maintaining full backward compatibility with IPv4 V...
We’re starting the SR-MPLS workshop @ ITNOG 10 in Bologna in a few hours. Hope you’ll make it, but if you happen to be too far away, here’s the slide deck, the lab topologies, and...
Most EVPN documentation rushes into the complexities of symmetric IRB, type-5 EVPN routes, and EVPN IP-VRFs, but if you want to master a technology, it’s better to take it slow and...
IS-IS was designed to carry node addresses (NSAPs) between level-1 routers (called Intermediate Systems) within an area and area prefixes between level-2 routers, resulting in a pe...
Naveen Kumar Devaraj was reading my Integrated Routing and Bridging (IRB) with EVPN MAC-VRF Instances lab exercise and spotted this detail: Arista EOS originates MAC-IP routes wit...
I have been using Cisco CML to come up with a network design that is based on an airport. This is purely for learning purposes, but I would be grateful if I can have some advice on...
How to configure dvti using digital signatures? The thing I'm getting issue with this; Okay, On R1(hub): crypto isakmp policy 1 encr aes group 14 crypto isakmp profile dvti ca trus...
<p><em>netlab</em> release 26.05 is out. Here are the highlights:</p> Support for <a href="https://netlab.tools/module/srv6/#module-srv6-services&q...
In a previous blog post, I described the ARP issues you’ll encounter when using centralized routing (on a spine switch) between two EVPN MAC-VRF instances (a fancy name for a VLAN...
I'm learning site-to-site vpn with ikev1 right now. I want to see the inner payload in both isakmp packet 5,6 in main mode and the 3 packets in quick mode. Also I want to see the p...
what is the best design for this topology, how to start? and how to ensure a good basic Security Policy Plan? do i need somethings or devices that is not mentioned ? Branch Office:...
I postponed the discussion of ARP issues with EVPN anycast gateways to keep yesterday’s blog post reasonably short. If you’re impatient and want to try that out, I have just the ri...
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