Future of DWDM

DWDM will continue to provide the bandwidth for large amounts of data. In fact, the capacity of systems will grow as technologies advance that allow closer spacing, and therefore higher numbers, of wavelengths. But DWDM is also moving beyond transport to become the basis of all-optical networking with wavelength provisioning and mesh-based protection. Switching at the photonic layer will enable this evolution, as will the routing protocols that allow light paths to traverse the network in much the same way as virtual circuits do today. These and other advances are converging such that an all-optical infrastructure can be envisioned. Figure 3-12 shows an example of such an infrastructure, using mesh, ring, and point-to-point topologies at the optical layer to support the needs of enterprise, metropolitan access, and metropolitan core networks.

Hernandez Caballero Indiana M. CI: 15.242.745

Asignatura: SCO

Fuente:http://www.cisco.com/application/pdf/en/us/guest/products/ps2011/c2001/ccmigration_09186a00802342cf.pdf

---