BGP in 2021 – BGP Updates

The first part of this report looked at the size of the routing table and looked at some projections of its growth for both IPv4 and IPv6. However, the scalability of BGP as the Internet’s routing protocol is not just dependant on the number of prefixes carried in the routing…


BGP in 2021 – The BGP Table

At the start of each year, I have been reporting on the behaviour of the inter-domain routing system over the past 12 months, looking in some detail at some metrics from the routing system that can show the essential shape and behaviour of the underlying interconnection fabric of the Internet.…


Some Notes from RIPE 83

The RIPE community held a meeting in November. Like most community meetings in these Covid-blighted times it was a virtual meeting. Here’s my notes from a few presentations that piqued my interest. All the material presented at the meeting can be found at https://ripe83.ripe.net/. Vulnerability Disclosure Responsible Disclosure is a…


NANOG 83

The network operations community is cautiously heading back into a mode of in person meetings and the NANOG meeting at the start of November was a hybrid affair with a mix of in-person and virtual participation, both by the presenters and the attendees. I was one of the virtual mob,…


Measuring ROAs and ROV

There are a number of parts to the current framework that we’re using to improve routing security on the Internet. Prefix holders should generate validly signed Route Origination Attestations (ROAs) and have them published, Network operators should maintain a current local cache of these signed objects and use then to…


Notes from NANOG 81

As the pandemic continues, the network operational community continues to meet online. NANOG held its 81st meeting on February 8 and 9, and these are my notes from some of the presentations at that meeting. A Brief History of Router Architecture Ethernet, developed in 1973 at Xerox PARC, was a…


BGP in 2020 – BGP Update Churn

The first part of this report looked at the size of the routing table and looked at some projections of its growth for both IPv4 and IPv6. However, the scalability of BGP as the Internet’s routing protocol is not just dependant on the number of prefixes carried in the routing…


BGP in 2020 – The BGP Table

At the start of each year I have been reporting on the behaviour of the inter-domain routing system over the past 12 months, looking in some detail at some metrics from the routing system that can show the essential shape and behaviour of the underlying interconnection fabric of the Internet.…