What are ping and traceroute, really?
We often use ‘ping’ in conversation. What exactly is it, anyway?
Tag: routing
No, the Internet was not ‘down’
The 8 June 2021 disruption wasn’t an infrastructure issue.
Storing and retrieving IP prefixes efficiently
Guest Post: Searching for the perfect data structure to store and retrieve a full table of IP prefixes, while maintaining the hierarchical relations.
Everything you wanted to know about LEO satellites, part 3: Bandwidth, system capacity and inter-satellite routing
Guest Post: The third part in the LEO satellite series examines issues surrounding the ‘speed’ of the connections.
A tool to detect BGP lies
Guest Post: A framework that overcomes the problem in IP-to-AS mapping.
Some security issues with RPKI and how to fix them
Guest Post: RPKI has many advantages but introduces some security issues. Here’s how we could address them.
How do we count ASNs?
Now that we know what it means to be an ASN, how do we count them?
What, exactly, are ASNs?
What does it ‘mean’ to be an AS number?
A brief history of router architecture
Guest Post: Here’s what we’ve learned about networks and the routers that interconnect them in the last 50 years.
Config2Spec: Mining network specifications from network configurations
Guest Post: Network verification requires the specifications of a network, and these can consist of thousands of policies. What if there was a way to profile a network more efficiently?