Border Gateway Protocol: An introduction to the Routing Protocol of the Internet! In previous blogs, we discussed OSPF, an internal gateway protocol (IGP) that distributes routing information within a single Autonomous System (AS). An AS is a network or group of networks managed by a single entity, like a company or government. However, the internet is formed by the interconnection of these
Configuring OSPF in Data Center Networks In our previous blogs, we explored the fundamental concepts of OSPF and delved into some of its key details. Now, we'll demonstrate how to configure OSPF in a data center environment, using Cisco Nexus devices as our example platform. A Brief Overview of OSPF OSPF (Open Shortest Path
OSPF Neighbor Establishment and LSAs In the previous blog, we introduced OSPF and laid a good foundation for understanding the protocol and how it works. In this blog, we'll continue by delving deeper into the details of how OSPF operates and serves the network. Fundamental OSPF Terms Before we begin, let's
OSPF Fundamentals for Data Center Networks In the recently completed series on switching in the data center, we discussed protocols and concepts that are usually implemented in the Local Area Network (LAN). To send packets between multiple LANs, networks perform what is known as routing. This is the process of selecting paths in a network along
Interaction Between Switching Protocols: STP, vPC and HSRP In previous blogs, we were able to give an in-depth study on these protocols. The goal of all the protocols discussed is to create a stable, scalable, efficient, and redundant Layer 2 network. The interoperability of these protocols is essential to achieving this goal. From the study it becomes somewhat
Gateway Redundancy Explained: How FHRP Keeps Your Network Connected Today, data centers are incredibly busy, processing countless online transactions and communicating with clients across the world. The gateway acts as the crucial link between the local network and external networks like the internet, making it a single point of failure that could disrupt these vital operations. To prevent this,
Blogs Maximizing Network Bandwidth: How Port Channels and vPCs Enhance Performance Spanning Tree Protocol (STP) is a double-edged sword. While it prevents network loops, it can also become a bottleneck for your data center's performance. On the last blog, we discussed how STP creates a loop-free topology in redundant networks. We saw how STP aids redundancy by actively reacting
Blogs Preventing Network Loops with Spanning Tree Protocol (STP) Welcome to my CCNP Data Center journey! In this blog series, I'll be exploring the key concepts of data center networking, starting with a deep dive into switching protocols. I'll assume you have a foundational understanding of networking principles as we explore these more advanced topics.
