Design Considerations

Design Considerations
THE CCNP EXAM TOPICS COVERED IN THIS
CHAPTER INCLUDE THE FOLLOWING:


Understand the three-layer hierarchical design model and
know the function of each of the three layers: Access,
Distribution, and Core.


Choose the correct routing protocol given specific design
requirements.


Recognize the benefits of route summarization and apply
proper route summarization to a hypothetical scenario.

This chapter covers the Cisco three-layer hierarchical design model
and talks about the proper layout of IP addressing to allow route
aggregation through summarization. We will also discuss how these
design considerations are affected by the routing protocol selected and why one routing protocol is
more desirable given a set of circumstances. Network design is very subjective, and some people have
strong views on the topic. Mainly, good network design is a function of experience and planning. We
will try to help you understand the considerations for good network design.