VMworld 2021 is online this year I'll really miss some of the sessions and exploration we've had in past years in person, but I think VMware made the right call this year. We can expect to see a fundamental shift with online conventions - and this will need some unique strategy compared to previous years. The Basics I …

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TL;DR If you see either of these errors, check grep 'ERROR' /opt/avi/log/cc_agent_go_{{ cloud }} for the potential cause. In my case, the / character was not correctly processed by Avi's Golang client (facing vCenter). The Problem When trying to configure NSX ALB + NSX-T on my home lab, I am presented nothing but the …

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If Avi Vantage IPAM cannot allocate an address for a new vIP, it will advertise an all-zeros host address - 0.0.0.0/32: This will cause Palo Alto PAN-OS to restart a peer - even if it is not the immediate downstream prefix. Palo Alto uses routed as their dynamic routing engine - so this is probably default behavior …

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NSX-T Edge Transport Node Packet Captures NSX-T Edge nodes have a rudimentary packet capture tool built in to the box. It is important to have a built-in tool here, as GENEVE encapsulation will wrap just about everything coming out of a transport node. NSX-T's CLI guide indicates the method for packet captures - from …

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Load Balancing is Important Load balancing is an important aspect of network mobility. How is a network useful if you can't move around within it? Cellular networks lose their appeal if you drop connectivity every time you roam between towers Wi-Fi networks are designed to facilitate smaller-scale movements. Imagine if …

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After all that meatspace talk, let's look at a few technical solutions and why they might not meet business needs in a specific setting. Shared Control Planes / Shared Failure Plane Shared Control Plane design patterns are prolific within the networking industry - and there's a continuum. Generally, a control plane …

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One major advantage to NSX-T is that Edge Transport Nodes (ETNs) are transitive Transitivity (Wikipedia) (Consortium GARR) is an extremely important concept in network science, and in computer networking. In simple terms, a network node (any speaker capable of transmitting or receiving on a network) can have the …

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BGP Advantages in Virtualized Networking BGP is more like an Application BGP, by design, is a lot more capable than most typical routing protocols. Here are a few ways MP-BGP/BGPv4 is fundamentally unique: Extensible: MP-BGP can store and run multiple address families (AFIs) and subsequent address families (SAFIs). …

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So far, we've provided the infrastructure for continuous delivery / continuous integration, but it's been for those other guys. Is that odd? Let's try using the principles provided for more infrastructure-oriented reasons. Let's build a network lab using NSX-T. First, we need some form of a mutable router. Normally, …

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To get past the first major test (Explorer), you simply need to access a page over IPv6, and pass a quiz. To do this, spin up a desktop VM on your dual-stack vn-segment and navigate to https://ipv6.he.net/certification/ To get past your next phase (Enthusiast) you do have to spend some money - purchase a domain (the …

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