Cisco Network Essentials // OSPF part 1
Open Shortest Path First (OSPF) • OSPF, or Open Shortest Path First, is a link-state, open-standard, dynamic routing protocol. OSPF uses an algorithm known as SPF, or Dijkstra’s Shortest Path…
Cisco Network Essentials // HDLC
Cisco High-Level Data-Link Control (HDLC) protocol was once very popular 'back in the day'. On a quick side note - I always try to explain things in a simply way…
Cisco Network Essentials // EIGRP Part 1
EIGRP Characteristics Fast Convergence EIGRP uses the DUAL algorithm to converge very quickly. It does this by knowing neighbor router’s routing tables and predefining primary and secondary routes to every…
Cisco Network Fundamentals // Administrative Distance
Administrative Distance Routers need a way of determining which path to use to a destination network if two or more routing protocols are in use and both advertise a route.…
Cisco Network Fundamentals // Classful Concepts
Classful Concepts IP routing protocols are either classful or classless and that determines how they present route information. Classful Classful routing protocols (like RIPv1) do not include the subnet mask…
Posted in300-100 Cisco exam prep technologies
Cisco Network Fundamentals // Static Routes
Welcome to the first of my Cisco Network Fundamentals series I will be covering all sorts from the exam topics, including live simulation scenarios. Long reads have their place but…
Posted in300-100 Cisco exam prep technologies
Cisco Network Fundamentals // Dynamic Routing
Dynamic Routing These protocols can dynamically respond to changes in the network. The routing protocol is configured on each router and the routers learn about both each other and remote…