Chapter 21
Understanding OSPF Concepts
This chapter covers the following exam topics:
3.0 IP Connectivity
3.2 Determine how a router makes a forwarding decision by default
3.2.b Administrative distance
3.2.c Routing protocol metric
3.4 Configure and verify single area OSPFv2
3.4.a Neighbor adjacencies
3.4.b Point-to-point
3.4.c Broadcast (DR/BR selection)
3.4.d Router ID
Every enterprise uses some dynamic routing protocol inside their network so that the routers cooperatively learn routes to all subnets. But in the decades that led to TCP/IP becoming the common networking model used on all computers, several routing protocols emerged as candidates to be used by those enterprises. As a result, even today, enterprises choose from a small set of ...
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