It's funny, in my experience, OSPF is the most widely used interior gateway protocol because it "just works" and it's an IETF standard which means it inter-ops between different vendors and platforms. However, if you really start to look at how OSPF works, you realize it's actually a highly complex protocol. So on the one hand you get a protocol that likely works across your whole environment, regardless of vendor/platform, but on the other you're implementing a lot of complexity in your cont...| packetmischief.ca
So... I'm a little embarrased to admit this but I only very recently found out that there are significant differences in how Virtual Port Channels (vPC) behave on the Nexus 5k vs the Nexus 7k when it comes to forming routing adjacencies over the vPC. Take the title literally! I've read the vPC Best Practice whitepaper and have often referred others to it and also referred back to it myself from time to time. What I failed to realize is that I should've been taking the title of this paper more...| packetmischief.ca