chapter 13
Deployment Considerations
IN THIS CHAPTER, we will study some of the issues facing network operators as they build new networks or upgrade their networks to higher and higher capacities. We will start by understanding how the network is changing from a services perspective, and then understand the changes happening to the network infrastructure. Chapter 1 provided an overview of some of these changes, but we will examine them in detail in this chapter. We will try to understand the various architectural choices available to carriers planning their next-generation networks, in terms of the roles played by SONET/SDH, IP/MPLS, and Ethernet. We will discuss the role played by the optical layer and the economic considerations underlying ...
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