Implementing IPoDWDM interfaces on Cisco CRS routers eliminates the need for which network
component?
A.
ROADM
B.
external transponders
C.
electrical-optical-electrical converters
D.
electrical cross-connect
Explanation:
IP over DWDM (IPoDWDM) is a technology used in telecommunications networks to integrate IP
Routers andSwitches in the OTN (Optical Transport Network).
http://www.cisco.com/c/en/us/products/collateral/routers/carrier-routing-system/Cisco_IPoDWDM_bro.html
With the convergence of IP intelligence and DWDM transport technology in Cisco ® IPoDWDM solutions, service providers around the globe are realizing:
• Significant capital savings by eliminating layers of transponders between IP and optical network layers
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http://www.cisco.com/c/en/us/products/collateral/optical-networking/ons-15454-series-multiservice-provisioning-platforms/white_paper_c11-601399.html
The Cisco IPoDWDM solution offers the following key features:
– Flexible and fully reconfigurable DWDM network with zero-touch Cisco ONS 15454 MSTP omnidirectional and colorless ROADM
– Proactive protection on Cisco CRS-1 and ONS 15454 MSTP
– Common management interfaces
– Router IPoDWDM interfaces that eliminate the need for optical transponder equipment (see Figure 3):
– Cisco CRS-1 Carrier Routing System: 1x 40-Gbps and 4x 10-Gbps IPoDWDM interfaces
– Cisco 7600 Series Routers: 2x 10-Gbps and 4x 10G IPoDWDM interfaces
– Cisco 12000 Series Routers: 1x 10-Gbps IPoDWDM interface
– Cisco ASR-9000 Series Routers: 8x 10-Gbps and 2x 10-Gbps IPoDWDM interfaces
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