~ / tag / networking
#networking
$ grep -l "networking" ~/posts/* | wc -l → 8
2026
BGP Roles and OTC: Route Leak Prevention Built Into BGP
RFC 9234 adds roles to BGP sessions and an Only-to-Customer attribute to routes. Together they stop the most common kind of route leak automatically. What it does, and how to enable it on VyOS.
2025
Designing a BGP Large Community Scheme for a Small Network
Communities are the cheapest form of documentation your network has. A practical large community scheme for a small AS: tagging where routes come from, and letting peers and customers steer how you announce them.
RPKI Route Origin Validation on VyOS with Routinator
Dropping RPKI-invalid routes on VyOS is a handful of commands. Here is how I set up Routinator as a validator, connect VyOS to it over RTR and filter invalids on every eBGP session.
2024
VyOS - 100Gbit BGP - Part 2
In the previous blog I did a test between two Vyos hosts, indirectly connected to each other with two switches. It was amazing how easily Vyos could…
VyOS - 100Gbit BGP - Part 1
I have been using VyOS as a routing platform for various networks and projects for a long time with great success. With speeds between 1-40Gbit, I…
VyOS 10gbe throughput optimization
Disable offloading, enable ntuple Configure MAX RPS flow counts for queues TCP Tweaks: Setting the MaxReadReq to 2048 Disable all offloading on the…
2020
BGP Route-Leak causes a significant shift in European internet traffic to Chinese Backbone network
Last Thursday, June 6, 2019 at 12:00 a.m. Dutch time, a two-hour outage began at various customers. Both business customers for fiber optic internet…
CGN: Carrier Grade NAT
Every network engineer with some experience knows RFC1918 address space from the top of their head. So no need to explain that almost every office,…