Packets DownRange
For years, we have heard of the depletion of IPv4 address space on the Internet. At the same time, more and more networks are coming online. Out of these new networks, we have an ever-increasing number wanting to participate in BGP routing. This can be for several reasons. The first is for what BGP was … Read more
Quantum computing is one of those buzzwords floating around. Should you, as an Internet Service Provider, care? In this blog post, I will go over, at a high level, what quantum computing is and what to watch if you are a Service Provider. Quantum computing leverages the principles of quantum mechanics to perform complex computations … Read more
Open Shortest Path First (OSPF) is a widely used interior gateway routing protocol for Internet Protocol (IP) networks. OSPF is used by organizations to route traffic within their own networks, as well as between different networks. Here are some key points about OSPF: In conclusion, Open Shortest Path First (OSPF) is a widely used interior … Read more
https://www.globed.net/courses/back-to-networking-basics In this Networking Basics Workshop we will be learning the following: REFERENCE MODELSETHERNET STANDARDS AND SPECSTRANSMISSION METHODSTOPOLOGIES NETWORKING DEVICESIPV4 ADDRESSINGHEX CONVERSIONCISCO ROUTER AND SWITCH BASICCISCO ROUTER AND SWITCH CONFIGURATIONLAYER 2 SWITCHING LAYER 3 ROUTINGLAYER 3 ROUTING USING L3 SWITCHING RECORDINGS OF THE WORKSHOP WILL BE SENT TO ALL THAT REGISTER – Even to those that … Read more
APNIC has a bog article on detecting “bgp lies”. https://blog.apnic.net/2021/05/24/a-tool-to-detect-bgp-lies/Do you ever wonder whether you can really trust other networks, such as your provider(s) and peers? More precisely, wouldn’t you like to be able to tell if the traffic you send always flows through the paths received in the Border Gateway Protocol (BGP)? Could it be that, … Read more
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After my blog post about Hurricane Electric and RPKi support, I was seeing some comments by folks that warrant some clarification. I put together a short midnight podcast on this. To summarize1. route original validation is not the same as having ROA’S with your RIR2. If you have an ASN you should have a peering … Read more
Internet Service Providers (ISPs) can be intimidated by all of the facets of working with the American Registry of Internet Numbers (ARIN). I have put together a guide that outlines common things you, as a service provider, need to do. This guide is not an end-all how-to. Throughout, I am posting videos and links taken … Read more
Ever wondered what routing registries are out there? Here is a list from irr.net
Anyone who has followed me knows I am a fan of Internet Routing Registries (IRR). However, there is a glaring issue with these registries.
In this presentation, I talk about BGP communities, filters, and other cool BGP stuff.
virtual routing and forwarding (VRF) is a technology that allows multiple instances of a routing table to co-exist within the same router