Do you know about Sergeant Stubby? He was a famous dog of high rank who has been commissioned to serve...
The last OSPF area that we will tackle is the Totally Not-So-Stubby Area (Totally NSSA). NSSA, like Stub area, has two flavours: one that is...
Stub Area is usually configured when there is only a single exit point on the network. It is like the dead-end...
OSPF Area Types According to Cisco, OSPF area is a collection of logical OSPF networks (routers and links) that have the same area identification....
Link State Advertisement (LSA) is the building block of OSPF. You will hear this LSA over and over again when studying or...
You might be wondering how EIGRP neighbors talk to each other. How do they know their neighbor is down? How do they...
EIGRP already has what it takes to be the best IGP. However, there is a need for an open standard protocol...
EIGRP like OSPF has three tables: Neighbor, Topology and Routing tables. However, don’t be confused because not all EIGRP tables have the same build like...
EIGRP really hates the querying process so it always preferred to have a backup route in case the link to a...
The “no auto-summary” command is one of the most important commands that you shouldn’t neglect in configuring EIGRP. Honestly, during my...
