network. The egress OLS edge routers deaggregate the packets. The unicast and
multicast video as well as the background FTP traffic all performed with no
noticeable additional errors.
Edge router research and development have made excellent progress around the
world [147, 172, 173], allowing interfacing with higher layer applications.
Optical Routers and Integration efforts
As mentioned in Section 16.3.1., today’s electronic routers consume relatively
large space and power. The state-of-the-art CISCO CRS-1 router with 640 Gb/s
capacity (16 slots of 40 Gb/s line cards in one shel f) occupies 213 60 91 cm
3
space, consumes 15.5 kW power, and weighs 751 kg [174]. The multishelf config-
uration of the CRS-1 router can scal e up to 46 Tb/s capacity [1152 ...