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Cisco Systems, Inc.
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Figure 9
Cisco ONS 15454 Hybrid DWDM Architecture
The Cisco ONS 15454 Optical Transport solution offers significant advantages over traditional network elements that offer broad deployment
and capabilities, including:
• Unprecedented service interface selection—The Cisco ONS 15454 platform supports the broadest range of service interfaces available on a
single chassis type by using software personality loads, including asynchronous (DS-1/E-1, DS-3/E-3), SONET/SDH (EC-1, OC-3/STM-1 to
OC-192/STM-64), Ethernet (10, 100, 1000, and 10,000 Mbps), SAN (ESCON, FICON, 1- and 2-Gbps Fibre Channel), and video (D1 and C-
Cor DV6000) interfaces.
• Multiple restoration types—The Cisco ONS 15454 MSPP platform supports two- or four-fiber BLSR/MS-SPR, UPSR/SNCP, linear
APS/SNC, and path-protected mesh networking (PPMN). This allows the service provider to deploy the platform in all areas of the transport
networking applications, including the inter-office network, normally deployed using two- or four-fiber BLSR/MS-SPR restoration, as well
as the collector or fiber to the building networks, normally taking advantage of UPSR/SNCP restoration.
• Common line cards and chassis—Optical line cards are not restoration-type dependent, reducing sparing costs and technician confusion.
Additionally, as networks change and customer interface demands evolve, the user has the ability to easily and simply redeploy optical
circuit packs as necessary.
• Common chassis type—A common chassis supporting all optical interface speeds allows the technician to spend time deploying bandwidth
and services instead of learning about multiple equipment platforms. Many equipment vendors offer optical-line-speed-specific platforms
(OC-3/STM-1, OC-12/STM-4, and so on) and categorize platforms by restoration mechanisms (UPSR/SNCP, 2F-BLSR/MS-SPR, 4F-
BLSR/MS-SPR, etc.). This not only causes confusion when ordering, but also may bring into question whether the required platform will be
available to support the desired application. The line rate and restoration flexibility of the Cisco ONS 15454 makes ordering and deploying
simple, fast, and easy.
The Cisco ONS 15454, the industry’s leading metro optical transport platform, delivers supercharged SONET/SDH transport, integrated optical
networking, unprecedented multiservice interfaces, and competitive economic benefits.