Internet-2 Fall Meeting Optical Panel. Tuesday September 20 th 2005 firstname.lastname@example.org. Electrical vs Optical Switching in R&E Networks. Capabilities Economics Reliability. Capabilities. Economics. The most cost effective solution is dependent on
Tuesday September 20th 2005 email@example.com
Example 1: All traffic is ‘available’ for add/drop at the node but
can be pass-through if necessary – assumes 10GigE traffic
OEO is more cost effective at all capacities
Example 2: Fixed capacity of 32 wavelengths – %age of traffic
available at the node is variable – Assumes 10GigE traffic
OOO more cost effective with increasing pass-through traffic
Example 3: QUILT Network Model (October 2004) : Metro 2-1 node.
Mix of 2.5G(50%) and 10G(50%) traffic. 25% pass-through traffic (10G)
OOO / OEO equally cost effective at Day-1 :OEO
becomes more attractive as more capacity is added
Electronic switching is a well proven, field deployed technology.
With increase in market volumes (2008) Optical ROADM reliability
will be on a par with electrical reliability