This chapter covers the following topics:
Optical networks present some added challenges that do not normally exist in packet-switched networks (PSNs) and hence cannot be fully addressed by the traditional MPLS schemes. Here are a few examples of these challenges:
Optical/TDM bandwidth allocation is done in discrete amounts, whereas in PSNs, bandwidth can be allocated from a continuous spectrum.
The number of links in an optical network can be orders of magnitude larger than in a traditional network, due to ...