Routing and Switching Performance Trend 

Current and proposed solutions do not disrupt overall trend:
as finer bandwidth granularity is required, network elements move toward more expensive and less scalable switching technologies

Capacity/Cost

Scalability

Bandwidth Granularity

Coarse: Circuits

Fine: Packets

Optics

Electronics

Gigabit

Routers

Terabit Routers

Integrated

OXC/Router

Grooming

OXCs

Wavelength

OXCs

Optical Label Switching (OLS) disrupts capacity/cost trends in routing and switching

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