One of the most important technical protocols on the planet is Open Shortest Path First (OSPF). This highly tunable and very scalable Interior Gateway Protocol (IGP) was designed as the replacement technology for the very problematic Routing Information Protocol (RIP). As such, it has become the IGP chosen by many corporate enterprises. OSPF’s design, operation, implementation and maintenance can be extremely complex. The 3-Day INE bootcamp dedicated to this protocol will be the most in-depth...
A key to the mastery of a CCENT-level of networking knowledge is to intimately understand the use of Layer 2 and Layer 3 addressing when two hosts communicate on the network. This blog post will detail how these addresses are used during the network communications between two host devices (Personal Computers, PCs). Here is the topology that will be used in this example: