The Label Distribution Protocol (LDP) allocates a local label for every route learned from the IGP. But the question is, do we really need a label for every route? The short answer is no! We can optimize LDP and save resources by allocating labels only to the Provider Edge (PE) routers. Let’s test in the lab on IOS and IOS XR devices. Diagram Every router has a Loopback0 configured with IP address X....
Traffic engineering in the OSPF networks is not that easy and sometimes can be a daunting or even impossible task, due to the fact that OSPF has many path selection rules. In this lab, I would like to discuss a scenario, where you can “hack” the regular OSPF rule, which states that inter-area routes are preferred over inter-area. Diagram Every router has a Loopback0 configured with IP address X.X.X.X/32, i.e R2 (2....
Recently I passed the recertification exam for the AWS Solution Architect Associate. It took me roughly about 1 month to prepare for it. It was way easier than in 2018 when I took this exam for the first time. Cloud is a very dynamic environment and lots of new services come up every year, but the fundamentals remain the same. Because of that, I was starting from some level of knowledge and I needed only to refresh it and learn new things....