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IPv4 addresses are not the only Internet number resource that has effectively run out in recent times. Another pool of Internet numbers under similar consumption pressures has been the numbers that are intended to uniquely identify each network in the Internet’s inter-domain routing space. These are Autonomous System numbers (ASNs).…
We tend to make a number of assumptions about the Internet, and sometimes these assumptions don’t always stand up to critical analysis. We were perhaps ‘trained’ by the claims of the telephone service to believe that these communicaitons networks supported a model of universal connectivity. Any telephone handset could establish…
This is the long version of the blog post. A shorter version is available here. There is a graph I’ve been pondering for some time that illustrates the topic I’d like to look at in this article. Figure 1 – Number of Routes announced…
The Border Gateway Protocol, or BGP, has been holding the Internet together, for more than two decades and nothing seems to be falling off the edge so far. As far as we can tell everyone can still see everyone else, assuming that they want to be seen, and the distributed…
NANOG 65 was once again your typical NANOG meeting: a set of operators, vendors, researchers and others for 3 days, this time in Montreal in October. Here’s my impressions of the meeting. Keynote The opening keynote was from Jack Waters from Level 3, which looked back over the past 25…
Most of the time, mostly everywhere, most of the Internet appears to work just fine. Indeed, it seems to work just fine enough to the point that that when it goes wrong in a significant way then it seems to be fodder for headlines in the industry press.
This presentation looked at a number of specific examples of route hijacking. The examples included: Network hijacking to support the creation of bitcoin farms and bitcoin mining via hijacked pool of servers, which, in turn, may use a hijacked pool of routes. The scope of a Canadian hijack was limited…
Jon Brewer for NSRC presented at NZNOG on the pacific networking scene. He did a really good job of showing how the pacific floor is covered by a mesh of fibre connecting the developed economies, but they have bypassed many of the smaller island economies. There are sound economic reasons…
Tim Nagy from Juniper presented on the virtual router model. This is when you take commodity hardware (PCs) and run a virtualized router image on it, to provide you with the same kind of functionality a real dedicated hardware router would do, but hopefully in a more scaleable manner for…
Dean Pemberton gave an impassioned talk on behalf of Andy Linton, about mapping the participants in peering at exchange points (IXP). The fundamental problem is that in NZ, a lot of local peering participants have not bothered to participate in http://www.peeringdb.com listings for the location. It lists only 20 participants…
