There are a number of systems that have been proposed to validate (or secure) the path in BGP. To finish off this series on BGP as a case study, I only want to look at three of them. At some point in the future, I will probably write a couple of posts on what actually…
Throughout the last several months, I’ve been building a set of posts examining securing BGP as a sort of case study around protocol and/or system design. The point of this series of posts isn’t to find a way to secure BGP specifically, but rather to look at the kinds of problems we need to think…
In the last post on this series on securing BGP, I considered a couple of extra questions around business problems that relate to BGP. This time, I want to consider the problem of convergence speed in light of any sort of BGP security system. The next post (to provide something of a road map) should…
In my last post on securing BGP, I said— Here I’m going to discuss the problem of a centralized versus distributed database to carry the information needed to secure BGP. There are actually, again, two elements to this problem—a set of pure technical issues, and a set of more business related problems. The technical problems…
This is the second post in the two part series on BGP path validation over on the LinkedIn Engineering blog. We left off last time after having described the eight operational requirements that must be met for any system that reduces our reliance on transitive trust in relation to the AS Path. As a reminder,…
BGP provides reachability for the global ‘net, as well as being used in many private networks. As a system, BGP (ultimately) isn’t very secure. But how do we go about securing BGP? This series investigates the questions, constraints, and solutions any proposal to secure BGP must deal with as a case study of asking the…
In part 1 of this series, I looked at the general problem of securing BGP, and ended by asking three questions. In part 2 and part 3, I considered the third question: what can we actually prove in a packet switched network. For this section, I want to return to the first question: Should we…
This is my talk on BGP security from the latest NANOG. Some of the questions I discuss in this talk, and some of the solutions, interact with the series I currently have running on BGP security here.
To recap (or rather, as they used to say in old television shows, “last time on ‘net Work…”), this series is looking at BGP security as an exercise (or case study) in understanding how to approach engineering problems. We started this series by asking three questions, the third of which was: What is it we…
In part 1 of this series, I pointed out that there are three interesting questions we can ask about BGP security. The third question I outlined there was this: What is it we can actually prove in a packet switched network? This is the first question I want dive in too—this is a deep dive,…
- « Previous
- 1
- 2
- 3
- 4
- Next »