Have you ever wondered what is inside the OSPF packet header and how they communicate with other routers in the domain? The...
Year: 2017
Routing Protocols, unlike humans, can choose their neighbors. We, no matter what we do, cannot choose who’s going to rent...
The golden rule in designing an OSPF network is to have all the areas physically connected to the backbone area. No matter how many...
I just had a break after finishing the Stub Area lab. Yeah, I ate a lot today. One whole chicken...
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...
