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One of the most common questions I get concerns path selection within the router. Everyone knows (or at least they should know) that a more specific prefix will be preferred, but until you learn the basics, you’ll never be able to debug why a router is using a sub optimal path. There are a couple [...]
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For some, BGP is a rather large obtrusive beast of a protocol that scares them half to death. This is not without good reason as BGP is not only the most important protocol running on your network, but it is also one of the most targeted routing protocols in terms of malicious attacks. The majority [...]
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If you haven’t touched BGP Communities I want to start out by saying that they rock, they’re actually my favorite BGP feature, especially when all of your upstream providers support blackhole communities. I’ll get into that on a later tutorial though..
Last night I was laying in bed not sleeping and I started to let my [...]
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